 Next, Welsh released "The Acid House", a collection of short stories from "Rebel Inc.", "New Writing Scotland" and other sources.Many of the stories take place in and around the housing schemes from "Trainspotting", and employ many of the same themes; a touch of fantasy is apparent in stories such as "The Acid House", where the minds of a baby and a drug user swap bodies, or "The Granton Star Cause", where God transforms a man into a fly as punishment for wasting his life.Welsh adapted three of the stories for a later film of the same name, in which he also appeared.