Philip Purser-Hallard is the author of the trilogy of urban fantasy thrillers beginning with The Pendragon Protocol, and the editor of a series of anthologies about the City of the Saved. As well as writing various other books and short stories, Phil edits The Black Archive, a series of monographs about individual Doctor Who stories published by Obverse Books.
""One of the cleverest locked room mysteries ever tackled by Sherlock Holmes.""... ""John Dickson Carr and Anthony Boucher fans will be gratified at the logical explanation the master rationalist devises. This ranks among the top novel-length Sherlock Holmes pastiches."" - Publishers Weekly Starred Review