Legendary science fiction author Fowler Faulkes may be dead, but his creation, the iconic Dr. Derringer, lives on in popular culture. Or, at least, the character would live on if not for Faulkes's predatory and greedy heir Hilary, who, during his time as the inflexible guardian of the estate, has created countless enemies in the relatively small community of writers of the genre. So when he is stabbed nearly to death in a room with only one door,...