Five boxes with strange objects and a sword-cane umbrella—these are the only utterly mysterious clues in the case of poisoning and murders that could hardly have been solved without the famous detective Sir Henry Merrivale (“Death in Five Boxes”). But J. D. Carr entrusts the solution of complex crimes not only to professionals, but also to detectives of sorts who end up—like Bill Dawson—completely ruined and poor. To improve his finances, he agrees to play the role of the nephew of an extremely wealthy uncle—and, not expecting it, he finds himself in a very serious predicament (“Nine Wrong Answers”).