Two murders that mightn't look like murder to anyone but Mallorca's sharp-eyed Inspector Enrique Alvarez (Murder Confounded, 1993, etc.). First Bridget Orr (not that it's her real name) takes a fatal tumble from the terrace of her villa in snooty La Malon Haute, then well-heeled rotter Hugh Robson gets a fatal overdose of heroin in his own eyrie. Orr's maid insists that she was afraid of heights and would never have ventured close enough to the railing to have fallen over, but it's Alvarez who realizes that the absence from Robson's house of any hypodermics or containers suitable for carrying heroin means that he was murdered. How are the two deaths connected? An endless trail of interviews--with Robson's alluring last lover, the gardener who pinched some of Robson's daffodil bulbs, the golf partner whose wife says Robson cheated, and the business partner who had a ú10,000 difference of opinion with him- -paints a picture of an eminently murderable man; but even after a routine trip to Robson's bank reveals a scabrous homemade videotape, it takes a third ``accidental'' death (a car crash victim shot in the head) to show the link between the first two. Whether he's enduring his cousin's domestic ministrations or getting disciplined for bearding the rich and mighty in their English lairs, Alvarez is as agreeable as ever as his creator puts a gentle spin on Chaucer's ``Pardoner's Tale.''