Copyright Paperback Collection (Library of Congress)

Clifford uses his size to help out in many ways--saving a kitten, rescuing people from a fire, masquerading as a elephant, and supporting up a bridge so a parade can pass.

The American Grand Opera has come to River Heights to perform Tosca, Aida, and The Marriage of Figaro, and Nancy's friend Bess is going to be a chorus extra. It's all so exciting for the girls; the costumes, the music, the glamor! Little do they expect, though, the drama that will take place backstage. When a falling sandbag from the scenery catwalk nearly misses the two female stars of the opera during a dress rehearsal. Nancy begins to suspect foul...