The digital-first mystery and thriller imprint that William Morrow first announced when they hired executive editor Dan Mallory last August will formally launch in October under the name Witness. The first 10 titles releasing that month are largely from UK authors including Stephen Booth, Frances Fyfield, Emlyn Rees, and Rory Clements. (Mallory was at Little Brown UK’s Sphere before moving to Harper, where he launched the UK digital-first line The Mystery Vault.) Witness will also release Agatha Christie’s Hercule Poirot short stories as digital singles, and has acquired more than 100 titles. Witness is considered part of Morrow and Harper’s broader Impulse […]