Gunshot-wounded at the climax of the interminable Jewelled Eye (p. 824), Chief Supt. Masters of Scotland Yard is now recuperating--and accepts a temporary teaching post down in the country at the Police College. . .only to find himself caught up in another slow, talky murder investigation. The puzzle: who is responsible for the disappearance of two local lads (one recently, one five years back)--and, if the youths were indeed killed, where are the bodies? The top suspect is a visiting cop from Holland--because his attendance at the College coincides with the two disappearances, because his car was seen near the apparent kidnap-spot. But Supt. Masters, with long-winded help from his usual cronies, reassesses the evidence, deduces where the bodies must be, finds them. . . and fingers the real culprit (no surprise), a weakly-motivated psycho. Not quite as soporific as Jewelled Eye, thanks to the Police College setting and the scenic search--but thin and painfully old-fashioned fare, especially in the frequent stretches of stolid small-talk and domestic chatter.