Introduction
Three years after the world believed him dead at the Reichenbach Falls, Sherlock Holmes steps out of a book collector's disguise in Dr Watson's study, and the doctor faints for the only time in his life. The detective never fell: he threw Professor Moriarty into the abyss with a wrestling trick, scaled the cliff, and wandered the world as a Norwegian explorer while Moriarty's lieutenants still hunted him. The murder of the young aristocrat Ronald Adair, shot in a locked room with no weapon found, draws him home. Around a wax bust of himself, turned every quarter-hour by the faithful Mrs Hudson, Holmes builds a trap that catches Colonel Sebastian Moran, the dead Professor's chief of staff, firing a silenced air-gun at his own image. With the last shadow of the old enemy imprisoned, the partnership resumes: Watson sells his practice, returns to Baker Street, and the great years of detection begin again.