Once, in a dusty 1896 issue of the literary magazine Pall Mall, William and Elizebeth discovered an article about ciphers used by anarchist opponents of the old Russian czars. The article included a brief cryptogram at the end. In general, the shorter the cryptogram, the harder it is to solve, the same way a song is harder to identify by three notes of its melody instead of twenty. This “Nihilist” cryptogram
