I meant to save this one for last. But as there’s been a year between when I wrote the first batch of these Bourne End Forever pieces and when I found time to write the last,
Vanished Prince, I thought I had better get this one out there while I was in the groove.

The Mystery of the Hidden House is the sixth book in the Mystery series, published in 1948. As with Five Go To Kirrin Island Again, the Famous Five book published the year before, the sixth book in the Mystery series was intended to be the last. As with Kirrin Island Again, Enid put a great deal of effort and inspiration into the series finale. In Kirrin Island Again, Enid succeeded in imagining a tunnel linking Kirrin Island - setting of the first book in the Famous Five series, Five On a Treasure Island - to the mainland. And, as I argue and illustrate in Looking For Enid, she used this tunnel as a way to reconcile herself to her long dead, beloved father (through George’s relationship with Uncle Quentin). How did she manage to ‘up the ante’ in an equivalent way in the sixth Mystery book? Well, that’s what I hope to show you!

But first, let’s start at the beginning. Here is a scan of the cover of the first edition:


After Enid’s elder daughter, Gillian, died in 2007, her copies of the Mystery series were sold at auction. Her copy of
Hidden House, which I bought along with the rest of her set, comes in a dust wrapper as above. However, if you take off the dustcover, it’s apparent that the book spent time on the shelves at Green Hedges without any wrapper.


Not only is the printing on the cover faded, library codes have been placed over the spine, leaving marks when the Sellotape that held them in place was subsequently removed. This is probably what happened to all the books at Green Hedges when they were taken away from the to-be-demolished house and added to the library of Darrell Waters Limited. It is likely that at a later date Gillian removed certain books that she felt she had a claim to. It is also likely that she then got a second-hand bookseller to source a high quality dust-wrapper, as all the Mystery books in her complete set had dust-wrappers. The book itself is a first edition from 1948, but the wrapper lists
The Mystery of the Pantomime Cat and so is from 1949 at the earliest. I’ll be coming back to this bibliophilic stuff later, anal as it is, as there is more to say about Enid’s own relationship with this actual copy of one of her favourite books, some of it speculative, some of it factual.

The book starts with the Find-Outers going to the station to meet Fatty. They mistake Ern (newly introduced to us) for Fatty. Ern gives up his ticket at the barrier then stops outside the station. He must walk up a slope, because Enid writes ‘
He put down his bag at the top of the slope to rest his arm’. He walks on again, conscious that he’s being followed and there is a lot of banter between Ern and the Find-Outers who insist on calling him ‘Fatty’. Eventually, the Find-Outers are surprised because ‘the way he went led to the village, not to his mother’s house’. They are further surprised when he turns into Goon’s police house.

This is a bit awkward from a Bourne End = Peterswood point of view. On the map below I’ve marked Fatty’s house (top left) and the station (bottom right). Goon’s house is on The Parade and by walking towards it, Ern is also walking towards Fatty’s house. So it would have been much better (for my theory) if Enid had simply made Ern turn into the Police station and have the Find-Outers express surprise only at that point.

Screen shot 2013-10-08 at 19.11.39

On, Graham Wheeler mentions that there is no ‘slope’, mentioned above, from Bourne End station to Station Road, whereas there is at Beaconsfield, where Enid lived while she was writing the Mysteries. And he suggests Enid may have had Beaconsfield Station in mind at the beginning of
Hidden House. But if one looks in detail at the journey between Beaconsfield Station and Enid’s own home, Green Hedges (marked by house symbol on the map below), that doesn’t help much either. The old police station at Beaconsfield is to the south and so Ern would have walked in the opposite way as soon as arriving at the top of the ‘slope’ from the station to Station Road, not after walking along the road with the Find-Outers for some way.

Screen shot 2013-10-08 at 19.13.20

That may seem like a dead end, and in a sense it is. It reminds me that the correspondence between actual Bourne End and fictional Peterswood can never be total. At any time, Enid can depart from her mental map either because she doesn’t choose to consult it, or because it is blurred in some respect, or because a plot detail demands it, or in order to intentionally keep things ambiguous. She knew there was a vital and comprehensive connection between Bourne End and Peterswood, but she didn’t necessarily want her readers to know it. She was careful not to use local names in the first five titles (a cycle ride to Burnam Beeches is mentioned in
Mystery of the Burnt Cottage, but it’s a single mention and is peripheral to the action). However, I think she wanted to put down a solid local marker in what she thought would be the last Mystery, hence the trip to Marlow - which lies three miles to the west of Peterswood, just as it lies three miles to the west of Bourne End - that I’ll be discussing soon. Actually, I think she wanted to put down a lot more than a solid local marker, but that will emerge as this goes on.

The Find-Outers realise who Ern is - Goon’s ridiculous nephew. He starts to visit them often and his naivety and obtuseness annoy them all. In
Hidden House the Find-Outers are meeting in Fatty’s shed, as opposed to in the play-room of Pip and Bets that was the main meeting place in earlier books. There is a fine paragraph describing Ern’s introduction to the shed, which is also the reader’s:

‘He arrived at the bottom of Fatty’s garden and heard voices in the shed there. It was Fatty’s work-room and play-room. He had made it very comfortable indeed. On this cold winter’s day he had an oil-stove burning brightly and the inside of the shed was warm and cosy. A tiger-skin was on the floor, old and moth-eaten, but looking very grand, and a crocodile skin was stretched along one side of the shed-wall. The Five Find-Outers were trying to roast chestnuts on top of the oil-stove. They had a tin of condensed milk and were each having a dip in it with a spoon as they talked.’

A plot is hatched by Fatty to send Ern on a wild goose (or Goon) chase. Fatty reports that strange flashing lights have been seen on Christmas Hill. Whatever the kidnappers or robbers are plotting needs to be investigated. Subsequently, a note is delivered to Ern at Goon’s house suggesting that Ern watch for lights on Christmas Hill in the ditch by the mill at midnight and report back the next day. Ern gets a map of the area. He finds the mill to the right of the stream. If he follows the stream he can’t miss the mill. However, Goon sees him studying the map and spots the path that Ern has pencilled ‘
from the village of Peterswood to the old mill’.

Now there is a Winter Hill to the south of Bourne End but this is not relevant. The stream is the essential bit of geography. There is only one stream in the locality (not including the wide River Thames) and that’s the River Wye. ‘Bourne’ is an old English word for stream and where the Wye flows into the Thames is ‘Bourne End’. This river is shown very clearly on the following Google map. The Wye used to have several paper mills along it, and some of these are still marked on maps that I’ll be reproducing further down this page. However, the mill that Enid is referring to, on a hill, would seem to have been a windmill, certainly Joseph Abbey thought so, as several of his illustrations, including the dustcover, show a windmill. The hypothetical mill I’ve marked in Mill Wood on the map below is on a ridge that roughly follows a parallel course to the River Wye.

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It’s Goon that turns up on the hill at midnight. He’s teased by lights shone by the Find-Outers, and Fatty - after trying out some rudimentary ventriloquism, a theme that will be further developed in
The Mystery of the Strange Bundle - jumps on Goon thinking he’s Ern.

Meanwhile (and this is where things get complicated geographically) Ern has followed the wrong stream. Moreover, he’s gone downstream rather than upstream. Now in ‘reality’, there is no other stream in the area and I’ll be coming back to this business soon enough. It’s after midnight when Ern sees a light, then a car without lights emerge from where the light shone. Was it something to do with the Christmas Hill mystery? He overhears a conversation in which a man is addressed as ‘Holland’.

The Find-Outers take Ern’s Mystery on board when he tells them about it, but persist with the fake one. They go up Christmas Hill (perhaps up Windsor Hill, a road that goes from the River Wye to Mill Wood on the above map) and drop some false clues to find later. Pip’s clue is a bit of paper with the phone number ‘Peterswood 0160’ written on it. Another of the clues is a hanky with the initial ‘K’ sewn into it. Let’s leave those for now, but if I play my cards right we’ll be coming back to them later. Instead, I’ll quote from the end of chapter nine. Fatty has asked Pip if he’s got a good map of the district, which he - or at least Pip’s father - does have:

‘Fatty put his finger on Peterswood, their village. He traced the way up to the mill, up the stream on Christmas Hill. Then he traced another way, alongside another stream, that at first ran near the first one and then went across fields.
“I think this must be the stream Ern went by last night,” he said. “Let’s see where it flows past. Nothing much, look! Just fields.”
The others all bent over the map, breathing down Fatty’s neck. They watched his finger go along the stream. It came to where a thick wood was marked. In the middle of the wood some kind of building was shown.
“Now I wonder what building that is,” said Fatty, thoughtfully.’

Yes, I wonder, as well. Stay tuned, dear readers!

In chapter 12, Fatty finds a directory of Peterswood, but it doesn’t mention the building in the wood, only the wood which is called Bourne Wood. ‘
The little stream that flowed through Peterswood was called the Bourne, so Fatty imagined the wood was named after it.’ No mention of a second stream this time. I think Enid has only needed that for plot purposes and can now quietly drop it and have her characters walk along the one and only stream. Fatty is joined by the rest of the Find-Outers for his winter morning walk:

‘They crossed the little bridge and went along the bank beside the stream. It was still frosty weather and the grass crunched beneath their feet. The little stream wound in and out, and bare willow and alder trees grew here and there on its banks. The scene was a maze of wintry fields, dreary and desolate.’

I suspect this would have been a favourite walk of Enid’s when she lived in Bourne End, and perhaps when she lived in Beaconsfield too, in other words until the end of her life. As recently as 2011 an angler has mentioned checking out the river between Wooburn (middle of the above map) and Bourne End, and catching the blue flash of the kingfisher. This is one of the key sights in nature according to Enid, who must have seen kingfishers along the rivers of Bromley in South London when she was growing up. In the first volume of
The Teacher’s Treasury she describes the bird as follows: ‘Of all our native birds the kingfisher is the most beautiful in colouring. Those who see him for the first time can hardly believe that the brilliant streak of blue flashing past them like an arrow is merely a bird. The little kingfisher is a regular little king in his domain, as anyone will agree who has once seen that brilliant flash of blue gleam over the brown river.’ Enid repeats the adjective ‘brilliant’ not because she has a limited vocabulary, but because I’ve put together that quote from the beginning and end of a two-page descriptive passage about the bird.

Along the River Wye is the only place Enid would have been likely to see kingfishers when she stayed at either Bourne End or Beaconsfield, so how could she have stayed away from it’s hallowed banks? Here is the river in summer:

River Wye Bourne End April 2011 006

But back to the Find-Outers and their winter walk.

‘The stream wound endlessly through the fields... After some time Bets pointed to the left. “Look is that the wood over there?”
“Can’t be,” said Pip. It’s on our left instead of straight ahead.”
“I expect the stream winds to the left then,” said Fatty. And so it did. It suddenly took a left-hand bend and ran towards the dark wood.’

Remembering that it would be rising land to the right as the Find-Outers walked north along the eastern bank of the river, the wood is clearly in front of them and to the left. The River Wye does indeed bend left after Wooburn and it looks very much to me that the Find-Outers are zeroing in on Fennell’s Wood, which is marked in the top left corner of the map below.


Enid describes Bourne Wood as being made up of evergreen trees. Fennell’s Wood consists mostly of tall beech trees but it seems to share with Enid’s vision a dark, sinister appearance. Someone calling himself ‘Daytripdude’ has put on
Youtube a walk through the wood, from which the image below is a still. Fennels (the spelling seems to have changed over the years) Wood has also cropped up in local news recently for being used by motorbikes at night in an antisocial way:

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Is there an isolated building in the middle of Fennell’s Wood? That would be too much to ask. But Enid needed one in the middle of Bourne Wood so that she could get on with weaving a plot around the places she knew and loved. Below is how Joseph Abbey visualised the Find-Outers first encounter with the mysterious property in Bourne Wood, Harry’s Folly.


In his shed, Fatty tells the Find-Outers that he’s discovered that Harry’s Folly is owned by Henry White. He can’t find out where he lives so they must find out more about the man ‘Holland’ that Ern overheard the night he followed the stream to the wood. The telephone directory tells them that there are three Hollands listed and it becomes Fatty’s job to follow up the W. Holland and Co. who are garage proprietors based in Marlow.

As I said, Marlow is a real place three miles west of Bourne End. Having mentioned it in
Hidden House Enid mentions it in several of the subsequent books. For instance, in Holly Lane the character Marian lives in Marlow. In Missing Man Fatty jogs along the river to Marlow and back. In Strange Messages Daisy wonders if there might be a house called The Ivies in Marlow.

Anyway, in
Hidden House, Fatty cycles to Marlow in disguise as Ern. He ascertains that the garage owner does know Harry’s Folly, but the owner in turn works out that the boy with the dog called Buster must be the local mystery-solving Frederick Trotteville. So, the following day when the man sees Ern (Who he thinks is Fatty), he tricks him into his car and, at the end of the day, locks him up in Harry’s Folly. Thereafter, both Goon (who has assaulted his nephew several times in the book) and Fatty have their own good reasons for feeling guilty over Ern’s disappearance.

Ern managed to drop the false clues found on Christmas Hill out of the car window as his kidnappers were driving through Peterswood to Bourne Wood. Goon finds them but can’t interpret them. He tells Fatty about them and Fatty does work out that Ern has been resourceful enough to lay down a trail to indicate where he’s been taken. At 8.30pm, after having dined with his parents, Fatty sets out from home, following the stream to Bourne Wood and Harry’s Folly.

Harry’s Folly tuns out to be a huge mansion whose front door is up a flight of stairs. Nearby there is another enormous building, either stables or garages. The door to one garage is open. The boys (Fatty has been joined in his night escapade by Pip and Larry) hear a noise and see part of the floor disappear. Then the section of floor comes back up again, like a lift. There are three cars in the garage, all with sidelights on. One by one the cars drive out, flash their headlights, wait for the gates of Harry’s Folly to be opened, and then drive away down the cart-track. The floor disappears again, taking the only man left in the garage with it. The boy Find-Outers (it’s a shame that Daisy and Bets are left out of the action) follow and soon they are underground, in an enormous workshop which, they work out, is a receiving place for stolen cars.

Walking back up a spiral staircase they come across doors that they suspect lead to the ground floor of the mansion. A cough from behind a door alerts Fatty to Ern’s presence. Soon Ern is throwing his arms round Fatty for finding him. But Fatty has something to ask of Ern. He asks if he’ll remain locked up all night so that the rest of them can get away and report what’s happening here to the police. Bravely, Ern accepts his fate. But let me quote Enid at this point:

‘“All right,” said Ern, “I’ll do it, see? I’ll do it for you, Fatty, because you’re a wonder, you are! But I don’t feel brave about it. I feel all of a tremble.”
“When you feel afraid to do a thing and yet do it, that’s real bravery,” said Fatty. “You’re a hero, Ern!”’

In the event, the Find-Outers can’t get out themselves until morning. First, they can’t get out of the mansion, which is locked and shuttered. So they retreat back into the underground workshop and find a dark corner to keep a lookout from. At 7am they take the opportunity to creep into the back of a lorry which is about to be raised to ground level by the moveable floor. They then skip out of the lorry while it’s waiting for the gates of the grounds to be opened, and make their way round to the rope ladder by which they got in.

Here is a photograph taken in Fennels Wood at sunrise. There is a ‘light at the end of the tunnel’ feel to it, so perhaps it’s appropriate to place here. Hurry home, Fatty, Larry and Pip!
Screen shot 2013-10-09 at 13.44.05

The boys eventually find the cart-track which leads to the stream which they stumble along all the way to Peterswood, to Goon’s house, and, as luck would have it, into the safe hands of Inspector Jenks.

But I’m not going that way. To wrap up
The Mystery of the Hidden House I’m making the short walk from Fennels Wood to Beaconsfield, and by track and lane I will soon arrive at Green Hedges, the house Enid lived in from 1940 until 1968. If you look at the map of the River Wye reproduced below, showing Fennell’s Wood on the left and Beaconsfield on the right, and find the orange road coming into the map from the top right corner, Green Hedges is the third house down, on the right. As I show in more detail on the Disappearing Cat page.


Yes, to wrap up this mystery, which was published in 1947, but which is partly based on Enid’s Bourne End years of 1929 to 1938, we need to have a word with the book’s author. And having walked north from Bourne End along the River Wye to Fennell’s Wood a few times, back and forth, and having seen the blue flash of the kingfisher, as recently as last week, I feel I’ve earned the right to be here. Thanks to photographs taken by Rolf Adlercreutz, my head-to-head with Enid takes place not in 2013, which would be asking too much, but in 1968. Oh, what a lot of years have passed since Enid raised Gillian and Imogen in Buckinghamshire! Oh, what a millennium it seems.

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Enid asks who I am.


“Ha ha. That is a good start.”

“I want to give you a special book.”

“I have quite enough special books already. But let me see... Oh, it’s my own copy of my favourite Find-Outers story. Thank-you so much for returning it.”


Before I hand Enid her book, I ask “Can you tell me why the cover print is so faded in places?”

“Yes, I can tell you that. It’s faded because I love to stroke the cover of this particular book. You try it, if you like. Put your right index finger on the fingerprint at the bottom of the book - which I feel you are entitled to do because you have read my story - and move your finger to the magnifying glass and back. Do that over and over again.”

“the phrase ‘hand and eye co-ordination’ comes to mind!”

“You can also do the same sort of movement with several fingers of your right hand between the title of the book and the name of the author,” says Enid smiling. “But you can only really do that if your name’s ‘Enid Blyton’, as mine is.”

I smile too and open the book. “Speaking of which,” I say. Then I read what Enid has written on the front end-page of her personal copy of
The Mystery of the Hidden House.


“This book belongs to Enid Blyton. Green Hedges, Penn Road, Beaconsfield. Please return it to above address.”

I go on. “So, you see, I’m returning your book at your request.”

“Thank you, but how did you get it in the first place.”

“I got it from Gillian.”

“Oh, she must have removed the book from Green Hedges without asking my permission. She shouldn’t do that. She has her own collection of books including many, many that I have given her. Really, she has no need to purloin her mother’s personal copies!”

I try and hand the book to Enid, but she tells me to turn over the page. She asks me to look at the frontispiece and read out its caption, a line about Ern.


“Out went the next clue - the hanky with ‘K’ on it.”

“That’s K for Kenneth, my dear husband, but something tells me you’ve already worked that out.”

“I must admit, I was curious. I first began to wonder if there was a connection between Green Hedges and the Hidden House when I read that Pip’s false clue for Ern was a telephone number, ‘Peterswood 0160’, because I had remembered that your own number was ‘Beaconsfield 1091’. There seemed a vague and tantalising resemblance between them.”

“Do you know about Kenneth’s Folly?” asks Enid.

“You mean his cars?”

“Kenneth spent a fortune on cars. At any one time we would have a Bentley, a Rolls Royce and an MG, at least. But my husband was always buying new cars and getting rid of the ones he was bored with.”

“You have garages at Green Hedges?”

“Yes. And one garage has both a loft, where apples are kept, and an inspection pit where the chauffeur can get under a vehicle and work away on it. Kenneth’s man could work wonders from that inspection pit, my husband often told me.”

“Actually, Imogen has told me that it was while climbing the ladder to collect apples from the loft that you fell onto the concrete floor of the garage and lost the baby that you and Kenneth were expecting. Though I do apologise for bringing up what must be a most painful memory.”

“Yes, that was very sad. It wasn’t long after the miscarriage when I sat down to write
The Mystery of the HIdden House. Perhaps a year, or maybe two. The negative feelings I had toward that garage possibly did feed - via my undermind - into the portrayal of Harry’s Folly.”

“I wonder if Imogen’s behaviour that day was also an influence on the book. I believe she’d accompanied you into the garage to help collect the apples, but ran from the scene after your fall. And, instead of calling for help, didn’t come back to the house until much later. I have to say I’m thinking here of Ern’s cowardice in
Hidden House, displayed several times during the book, which - entirely to his credit - he eventually overcomes when he agrees to stay in Harry’s Folly overnight. As I feel sure Imogen overcame her own cowardice once she confronted it later in life.”

“I thought that it would be the last Mystery,” says Enid, not directly responding to my words. “Just as I thought I’d written the last Famous Five book the year before. But my children - the world’s eager children - wanted more.”

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“Of course, we wanted more! If you’d stopped at
Hidden House we wouldn’t have had The Mystery of the Missing Man or The Mystery of the Strange Bundle. Indeed, we wouldn’t have had Vanished Prince or Tally-Ho Cottage. In other words, we wouldn’t have had any more Ern!”

“You’re very kind, Dunc

“No, you’re the kind one. Though brilliant is the word that best describes you. It was brilliant the way you came up with a tunnel between Kirrin Island and the mainland, a device to reconcile you - via George - to your father. And, a year later, it was brilliant the way you used a river to link your present family life at Beaconsfield with your past at Bourne End. And all sub-text, too. Absolutely brilliant!”

“Please keep the book. By standing here today and saying what you have done, you’ve earned it.”

“I’ve Erned it?”

“You’ve Erned it, Fatty.”

“Thank-you, Enid. I’ll treasure this book on behalf of all the children who have read and loved
The Mystery of the Hidden House, its humour and excitement, its characters and scenarios. Especially the children of all ages who are members of the Enid Blyton Society.”

“But don’t tell anyone that the book - that the whole series - is set in and around my beloved Bourne End.”

“Er... Your secret is safe with me.”

As Enid is walking back to the house I can’t resist raising my voice to ask her: “By the way, I know that Bourne End is an anagram of Ern bound. But did you mean that in the sense of ‘Ern tied up’ or ‘on the way to Ern’?

Enid stops walking. She says in that crystal-clear voice of hers: “Actually, ‘Ern bound’ is not an anagram of 'Bourne End', there is an extra 'e' in the latter. ‘Ern bun ode’ is the best one can make of it.”

Having said that, to my delight, she starts to recite:

“Oh have you heard of Ernie’s clues,
Ernie’s clues, Ernie’s clues,
A broken lace, our Ernie found,
a smoked cigar-end on the ground,
A match, a packet and a hanky,
Honest truth, no hanky-panky!
A rag, a tin, a pencil-end,
How very clever is our friend!”

The true genius walks on towards her house, Green Hedges. The house set in a metaphorical wood, Bourne Wood.

I shout again. “Oh yes, and what’s going on at the station? I can’t make that work at all, even though you give us another shot at it in
The Mystery of Holly Lane.”

Sadly (or happily), on this occasion, the lady’s not for turning.

Acknowledgements: Internal illustrations from the original Methuen edition of
The Mystery of the Hidden House are taken from the Cave of Books on the Enid Blyton Society website, which is the work of Tony Summerfield. Thanks to Google for the use of their mapping facilities.

Note: If any copyright holder wishes an image to be removed from this page then they should contact me and I will do as they ask.