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"A locked-room mystery preoccupies Boucher's brilliant clerical sleuth, Sister Ursula, in this stellar entry . . . a witty satire of SF and fantasy authors." —Publishers Weekly (starred review)


Legendary science fiction author Fowler Foulkes 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 Foulkes's predatory and greedy heir Hilary, who, during his time as the inflexible guardian of the estate, has cr...