We seem to have an instinctive fascination for mysteries and, especially, for mysteries that revolve around secret codes. This penchant brought about a publishing sensation in 2003-Dan Brown's novel ...
The imprisoned Mary, Queen of Scots used sophisticated ciphers as she conspired to overthrow her cousin, Elizabeth I. Long thought lost, the letters were hiding in plain sight. A portrait of a ...
In the late 1960s and early ’70s, a serial killer known only as the Zodiac took the lives of at least five people in northern California. The killer, who never was found or identified by authorities, ...
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