When 13-year-old Eileen Harrigan comes to visit her Mexican relatives at the motel that they run, one Of her first reactions concerns a guest. After a brief and apparently very superficial view of him, she immediately decides that ""he acts like someone who has something to hide."" Whenever events can't be jammed together to make a cohesive mystery the girl comes through with her sixth sense. With all her sensitivity it seems odd that she, along with her two cousins and a member of the Mexican customs bureau should mistake for so long the real culprit trying to smuggle out an ancient clay statue. He comes posing as the stereotype American tourist, price tag waving from his shoes and all, acts completely dense until he glimpses the statue, when he becomes very knowledgeable. Mexican scenery is incidental--of course it's fiesta time.... The statue is primitive, so is the plot.