Binary

Binary is a techno-thriller novel written by Michael Crichton, his eleventh published novel, in 1972, the eighth and final time the pseudonym John Lange was featured. Crichton also directed Pursuit, a television film version. The story of both the book and the film revolve around a deadly nerve agent composed by combining two different chemicals. Hard Case Crime republished the novel under Crichton's name in 2013.