TRUE STORIES
BEHIND THE CODE.

How Britain broke Enigma and Lorenz - Turing, the Bombe, Ultra, and the first electronic computer.

The unbroken WWII code built from a spoken language, plus a verified code-word reference table.

How two spies trade secrets without ever meeting - the cache, the signal, and the nickel that gave it away.

How secret writing actually works, from lemon juice to reagent inks, and the cases that ended it.

It was never a ring. The real story behind Little Orphan Annie's badge - and the cipher inside it.

The 22-year-old cryptographer who replaced a fatal memorised poem with a key printed on silk.

A 600-year-old illustrated book in a script nobody has ever translated.

A CIA-courtyard sculpture with four encrypted panels - three solved, one still standing.

The anonymous internet puzzle that sent solvers chasing posters on four continents.

DNA finally named him in 2022. The code found in his pocket is still unsolved.

One cipher revealed a buried fortune. The other two have never been broken.

A schoolteacher couple broke the first in a week. The second took 51 years. One remains.

A 448-page illustrated manuscript in an unknown script, unread for over 150 years.

Elgar's 87-character note to a close friend - she never cracked it, and nor has anyone else.

The FBI's own codebreakers couldn't solve it, so in 2011 they asked the public instead.

A real 18th-century pirate, a real execution, and 300 years of treasure legend.

A 1939 textbook challenge cipher its own author later admitted he forgot how to solve.