How acute are your powers of perception? Do they begin to match those of Gervase Fen, Oxford don and sleuth supreme? First published in 1953, ‘Beware of the Trains’ is a collection of sixteen short mysteries. Fen must link a missing train conductor to the murder of a thief, decipher cryptograms to solve the death of a cipher expert and puzzle out a locked-room mystery on Boxing Day. Erudite and complex, these Gervase Fen cases are classic crime at its finest: plot, atmosphere and anecdote, bound together by Edmund Crispin’s inimitable wit and charm.