The Master of Impossible Crimes

John Dickson Carr wrote famous mystery novels under three different pen names. He specialized in locked-room puzzles so intricate that they seemed to defy the laws of physics.

While he was an American author, Carr spent much of his career crafting atmospheric, classic British-style mysteries. He became a titan of the genre by creating situations where a murder appeared to have occurred in a sealed room with no possible exit. His work remains the gold standard for fans who love logic-defying plots. Readers were often shocked to find his different pen names were all the same brilliant mind.