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I am currently being held in prison under false accusation of murder, but do not worry about that, my lawyer will soon make things straight. If I write to you today is for another case: my cellmate just died last night while sleeping. It’s not that strange though, as he was an old man, somewhat deranged and he spent much time in prison. However, he told me a few days ago that he found a valuable secret, and he would keep it to himself. I thought I should investigate to find out about that secret, and just before they carried his body away, I managed to take his personal diary.

I tried making sense of his writings, and one thing I spotted is that he made great deal of a new friend of his, related to the secret. Here are a few examples:

diary

In case it helps, here is his puzzle #15:

( There’s a note on this page I did not catch on my photograph: A=1 )

puzzle15

And let me provide a transcript of the first two encrypted messages (can’t type the rest) 

NREPEBBGSOEPTRFEMMLABB
OOAADAOLLXUIEUALAOILOE
TYRDGKNOOFSMMSRENOVDRR


BiFSVblYewtYHtsFLICyetdRyiAd
vxsVChtsYgEJAHNtVbnTBIcxsYegu
lpragdrnazt.ye/puknzx/bzxlSUOHo[UIE
PBOFQTSPEC]KdthT6

In the diary, there are a ton of other games, cryptic messages, wordplays, etc. He loved talking in riddles and that would make people uncomfortable. For instance, the first day I arrived in the prison, he gave me this:

riddle

Well, that's not my cup of tea. And that's nothing compared to his diary. By the way, that contained an extra sheet: one piece of London's tube map (why would he need it?) with an ugly drawing on the reverse.

map and drawing

If you help me find out I promise to share the value of that "secret". But hurry! I'll soon get out of prison, and you may need me here for new clues. I'd really like to find his secret.

Sincerely, Jack P.

EDIT:

I see people are making good progress here, but it looks like that tube map was important. It must have some use in understanding the puzzles.

EDIT:

Sorry to say the same thing again, but it really looks like the map is important, and I feel there still is something in it.

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  • $\begingroup$ Oooh that last cipher before the keys is neat. $\endgroup$ – Will Apr 8 '16 at 16:35
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    $\begingroup$ Hand writing: 10/10 $\endgroup$ – Daedric Apr 8 '16 at 17:31
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    $\begingroup$ @Daedric No, 5/7. $\endgroup$ – Will Apr 8 '16 at 17:33
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    $\begingroup$ In case u missed it there is two small notes on the London tube map that say 'my password' and 'me' in the top right corner... easy to miss. The logo should read "UNDERGROUND" with a red O. $\endgroup$ – Daedric Apr 8 '16 at 17:38
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    $\begingroup$ The code to the locker is not correct it seems ... it needs 4 digits. $\endgroup$ – fffred Apr 18 '16 at 15:02
10
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Partial Answer(?): Puzzle #15

Using the "Key to Lines" on the tube map, we "line out these keys". Key lengths correspond to letter count and orientation of the key (head to teeth) corresponds to orientation of the word. I started with "Circle" (6 letters) and worked outwards puzzle 15 filled out like a crossword The red loop circles the letters E,I,I,I. Using the clue A=1, we get E=5 and I=9.
Therefore, the four digit code is 5999.
I'm not sure why the other clue referencing this puzzle refers to a three digit code, though? But perhaps this is the final part.

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  • $\begingroup$ Thank you very much for your help. The "THREE DIGIT" must have been a mistake because your code works. Now I did collect all the content of the locker and can safely get out of prison. Yours sincerely, Jack P. $\endgroup$ – fffred Apr 19 '16 at 19:56
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Partial Answer

The first "cipher" is based on the tube map. The columns are

The first three letters of map locations

The circled letters correspond to

Notting Hill Gate
Paddington
Oxford Circus
Temple
and Mansion House

If we connect the locations in the order they appear, using the circled ones as starting points, we get some numbers:

enter image description here
1 2 1 7 2

Splitting these numbers into

ASCII(121,72) = yH

and using Eoin's URL (which is missing a character), we get

https://goo.gl/photos/jgxyWADCwyHZyboT6

Which brings us to another image:

enter image description here

Which describes the cipher used in the following two notes


The penultimate note before "Puzzle #15" says:

PLANTED BUG IN PHONE
FRIEND VERY ANGRY NOT KNOW MYSTERY
WANTS DIARY BUT ALWAYS WITH ME
WOULD NEED KILL ME TO GET IT

The last note before "Puzzle #15" reads:

RECORDED PHONE CONVERSATION
MURDERER JACK PURTELL
STORED IN LOCKER
THREE DIGIT CODE
MUST REVEAL

These are translated by

Cutting the letters in half along their horizontal, and shifting everything above the cut left

So it looks like "Puzzle #15" is supposed to, when solved, give us

A three digit code to the locker

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  • 1
    $\begingroup$ Jack Purtell is the name of an Australian horse jockey, but he has no Wikipedia page, so I'm tempted to believe he doesn't exist. $\endgroup$ – Ian MacDonald Apr 8 '16 at 17:20
  • $\begingroup$ @IanMacDonald All that seems to matter is the Jack P. bit; shouldn't matter how real the guy is. $\endgroup$ – Will Apr 8 '16 at 17:36
  • $\begingroup$ At this point, I'd be more worried if he was real. $\endgroup$ – Zandar Apr 8 '16 at 17:38
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    $\begingroup$ @IanMacDonald Jack P. is also the name of OP, since he signed his question/post with: "Sincerely, Jack P." $\endgroup$ – Kevin Cruijssen Apr 8 '16 at 18:10
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    $\begingroup$ @KevinCruijssen Nice catch. Don't answer! He killed his cellmate! $\endgroup$ – feelinferrety Apr 8 '16 at 19:17
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Partial Answer

The last few images show a riddle, a map, and a crude drawing. I have deduced what they refer to, and his password.

The riddle and the drawing both are of HM Prison Wormwood Scrubs.


Breakdown of the riddle
Sorry for the format, I couldn't help myself... those are original, not from the OP.

First verse:

Earth is no secret, for that's where earthworms roam.
Bookworms would rather find books for their home.
They dig holes in the ground and in your face once you're dead.
Though they're quite slow and blind, so you're always ahead.
WORM

Second verse:

You're not out of the woods for this puzzle just yet.
You can knock on wood for good luck so you don't need to fret.
Driftwood is found afloat on the seas,
And stands can be found for all sorts of trees.
Just listen to the woodwinds make music so sweet,
And the woodlands are with fauna and flora replete.
WOOD

Third verse:

I'll do my best to keep my notes clean.
So my secret is nothing that you'll ever glean.
I'll scrub away clues with all sorts of code.
I never shall tell you where I stashed my load.
SCRUB


Map & Drawing

The prison is accessible by train from the East Acton stop on the Central line. The drawing is of the aerial view of the prison. The tube map points at red and says "Me" and at blue and says "My password". A red dot can be found on the crudely-drawn map inside the prison building, and a scribbled blue line can be found roughly where Wulfstan street runs.

Map of HMP Wormwood Scrubs


Okay, I can't decode any of the rest of this stuff, so I'm just gonna go ahead and post so someone else can win. T-T

Theory (wrong)

Decrypt the other two ciphers and in the upper/lower cased one, you will find a website, the domain likely ending in .uk. Use the password "wulfstan" where prompted. FIND THE SECRET.

Reference

One of the last puzzles left to solve is the all-caps message. It might have to do with the order/placement, so I thought a transcription of them in monospace may be useful.

NREPEBBGSOEPTRFEMMLABB
OOAADAOLLXUIEUALAOILOE
TYRDGKNOOFSMMSRENOVDRR

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  • $\begingroup$ I would +10 for the rhyme if I could !!! $\endgroup$ – fffred Apr 12 '16 at 20:01
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Partial clue

Using feelinferrety's password of 'wulfstan' as a vigenere key on the third piece of text gives the

output

FoUNDilLiciTPasSPORtmadEcoPydesIGninGnEWENCoDinGFOrsaFety remindergoo.gl/photos/jgxyWADCw[BIR THDAYASCII]ZyboT

or

Found illicit passport, made copy, designing new coding for safety reminder goo.gl/photos/jgxyWADCw[BIRTHDAY ASCII]ZyboT

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  • $\begingroup$ Nice job! I didn't think to take it back to the other puzzles! $\endgroup$ – feelinferrety Apr 14 '16 at 17:29

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