Jacob's Shadow is a appearing in Deus Ex. It is a work of fiction created by Chris Todd, one of the writers for the game. It is attributed to the fictitious author Andrew Hammond (in homage to crime writer Andrew Vachss). The first chapter found in the game is chapter twelve with a subsequent six other chapters (fifteen, twenty, twenty-three, twenty-seven, thirty-two, and thirty-four). These excerpts portray the cyberpunk themes of the game in the style of William Gibson. The book appears to be a violent, spiritual journey of a man named Jacob as he searches for a woman, who is never named, through a city described as 'Hell'. A chapter from a sequel to Jacob's Shadow, titled Jacob's War, can be found in Deus Ex: Invisible War.