“The story is fast-paced, the chapters are filled with appealing characters, and potentially unfamiliar words are clearly explained. . . . Young readers will be happily caught up in the duo’s latest mystery.” —School Library Journal

Smashie McPerter and her classmates from Room 11 are going on a field trip to the planetarium! Nobody is more excited than Smashie’s best friend, Dontel, who dreams of becoming an astrophysicist. In fact, Dontel has even created an accurate drawing of a working rocket, piloted by his and Smashie’s favorite action figure, Brainyon. In a surprise move, Dontel’s grandmother, who’s chaperoning, brings the rocket drawing with her to enter into the planetarium’s science contest. But in a shocking turn of events, the drawing goes missing before they get there! Smashie is on the case. But the suspect list keeps growing—prankster Billy, who prefers The Haddock over Brainyon; tight-lipped Tatiana, who’s wearing a NASA T-shirt; and . . . Smashie herself? Nobody is above suspicion in this third hilarious and clever Smashie McPerter mystery.