Arnie unveils the mystery of the Copiale cipher and the secret society rituals it hid for hundreds of years.

Kyle shares the story of the UK's answer to the German Enigma machine: Typex. Spoiler: Unlike Enigma, Typex was never cracked.

Leah matches wits with Sherlock Holmes over the mysterious cipher in the "The Adventures of the Dancing Men."

Elton Song describes the Fanquie code, a Chinese cipher that works with sounds instead of letters.

Kolapo Dairo dives into the history of invisible ink, used for centuries to hide messages.

Colin Snell tells a tale about a dead man found in 1948 on Somerton Beach in Australia whose pockets contained a mysterious encoded message.

Xinyi Zhang tells the story of a boy who found a hollow nickel and the encrypted message, sent by Russian spies, hidden inside.

Carson McRae shares the story of a World War Two carrier pigeon found 70 years later in the chimney of a home in England with an encrypted message still attached to its leg.

Welcome to Season 2 of One-Time Pod, a podcast on the history of cryptography produced by students in Derek Bruff's first-year writing seminar at Vanderbilt University. Each episode considers a different code or cipher, how it works, and why it's interesting.

Maria Sellers examines the claim that Francis Bacon wrote the works of William Shakespeare, signing his name to them in code.