Gr 5-8 Chelsey, the gutsy 13-year-old heroine of this fast-paced, suspenseful mystery, has been confined to a wheelchair since her automobile accident at the age of 3. Because her wheelchair does not fit into the bleachers at her high-school gymnasium, she is in a unique position to see a murder take place behind the seats at a local basketball game. Punky green-haired Jack, the tough new boy in school, is the only other witness to the crime. The two team up, investigate, and discover that the teen-aged victim was murdered because he knew too much about a drug ring at a town pizza parlor. In a tense showdown, Jack takes a ride on Chelsey's lap in her wheelchair to escape from and eventually capture the two men responsible for the crime. Chelsey is an upbeat, sympathetic protagonist. Since she lacks self-pity and copes maturely with her disability, this is not a ``problem novel.'' Rather, it's a good suspense novel in which a handicap is treated in a matter-of-fact way. It should appeal to the same audience as Roberts' The View from the Cherry Tree (Atheneum, 1975). Judy Greenfield, Rye Free Reading Room, N.Y.