Two swell teen age novels, both set in Colorado, and both centered around the kind of spunky, sensible people we'd like to know (Holiday Mountain, 1949 and Sentinel in the Saddle, 1951) indicate the plus value of this one. It's set in Colorado too, in the small town of Garrison where the Miles family have just come to work a gold mine and where their two children Jeff, a senior, and Virginia, a freshman, are new students in highschool. Jeff, who plays a baritone sax very well, wants to get into the band. When he does get chosen by Mr. Phillips, the band master, in spite of an already full section, he inadvertently makes enemies of the players forced out of coveted positions by his own skill. Excellent characterizations of the band's personalities and especially of fair but caustic Mr. Phillips alternate with deft descriptions of the mining venture to make a duo theme ending on a predictable note of harmony.