Paul Dixon, age twelve, and sister Linda, a little older, adjust rapidly to their new home in Sante Fe, New Mexico. In a few days, the former Ohioans are galloping around on horses as if they'd been raised by cowpokes. When the winners of the end-of-summer Rodeo are announced, Paul and Linda are judged the best all round, cowboy and cowgirl; after a few months of saddle and stirrups, it is no surprise that they should trot by all their New Mexican competitors to claim top honors. (Beginner's uck.) Paul also finds time to search for a missing deed to his family's home-- which he finds--and to rescue a friend who has been pulled under by the muddy thundering flood water. A jumbled plot, familiar events and standard characters ll add up to a hopeless grade C mystery.