In December nineteen twenty-six, Agatha Christie — already one of Britain’s most successful novelists — vanished without explanation. Her abandoned car sparked a nationwide search, her husband became the prime suspect, and the press turned her disappearance into front-page news. Eleven days later, she was found alive in a hotel under another name — and never spoke of it again.
This episode examines the official records, competing theories, and the people whose lives defined one of the twentieth century’s most enduring real-life mysteries.

In 1623, Shakespeare’s First Folio was published, preserving 36 plays and, some believe, concealing a secret.
For centuries, researchers have claimed that hidden within its pages is a cipher pointing to another author, Sir Francis Bacon.
This episode follows the origins of the Baconian theory, from Bacon’s real writings on cryptography to the treasure hunts beneath Chepstow Castle and the codebreakers who tested the legend.
A study of obsession, evidence, and the search for truth inside one of literature’s oldest mysteries.