Mass Effect: Deception is a novel by writer William C. Dietz set in the Mass Effect universe. Published in 2012 by Del Rey Books, it is the fourth novel set in the Mass Effect universe, and continues the story of the previous three novels. Deception is notable for the negative reception from fans of the Mass Effect series, which prompted significant coverage from media outlets. In response to the negative reception, BioWare announced in February 2012 that they intended to revise the novel's content for future editions of Deception. No rewrite has been announced or published ever since. Source: Wikipedia (en)