A brand-new Sherlock Holmes mystery from acclaimed author Philip Purser-Hallard.
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.