The Regeneration Trilogy is a series of three novels by Pat Barker on the subject of the final part of the First World War, focusing primarily on 1917 and 1918. The novels blend fact and fiction, hanging on a framework of factual events, an interwoven set of fictional story-lines of real people with fictional characters. The first novel of the series Regeneration was published in 1991, followed by The Eye in the Door (1993) and The Ghost Road (1995).