În 1942, un porumbel călător din timpul Celui de-al Doilea Război Mondial a dispărut cu un mesaj cifrat. 70 de ani mai târziu, constructorii i-au găsit rămășițele și biletul. Care era mesajul?

In 1982, a racing pigeon skeleton was discovered in a chimney in Surrey, containing an undeciphered coded message. The note, addressed to 'X02', was examined by GCHQ but remains a mystery due to missing cryptographic material. The message's content, consisting of groups of letters, has puzzled modern codebreakers since its public revelation in 2012.