A terrified young woman asks Miss Silver for help unmasking someone who has threatened her life. Rachel Traherne does not want to meet Maud Silver. She does not want to tell her that someone has threatened her life, because she does not want that dreadful fact to be true. But see Miss Silver she must, for the stout, old-fashioned detective is the only person in London who may be able to keep her safe. Rachel has been receiving threatening letters about her deceased father’s fortune. The first two letters were vague; the third said simply, “Get ready to die.”

Since then she has been nearly killed three times: first by a flight of sabotaged stairs, second by fire, and third by a box of poisoned chocolates. She fears it may be a family member, jealous of her inheritance and willing to kill to get it. But who could it be? Miss Silver is going to find out.