The third in the Zigzag Kids series, which features a culturally diverse, tight-knit cast and focuses on one character per installment, turns to would-be inventor Charlie. Charlie can’t wait to show off his new invention to his buddies in the after-school program. Unfortunately, the red sneakers with glued-on suction cups are about as successful at climbing walls as his Breathe-underwater Box was at supplying air. So far, his inventions aren't helping him to live up to his older brother’s stellar reputation with the teachers at Zigzag School. Compounding his woes, Mrs. Farelli picks him to organize the Come as a Character Day and dress as Peter Rabbit. It's a tough week for Charlie as he struggles with self-doubt and others’ expectations. As the day of the event approaches Charlie begins to feel the wonderful buzz signaling an idea for an invention. Could there be an opportunity in a huge load of detritus Jake the Sweeper's truck dumped in the playground by accident? Now he’s got a plan that, if successful, could help everyone and prove that junk is in the eye of the beholder. The cheerful drawings offer levity to the spare, straightforward prose laid out in one- or two-sentence paragraphs. The tension builds mildly, exploring the concept of individuality and the expanding pressures of growing up, demonstrating Giff's keen understanding of chapter-book readers. (Fiction. 6-9)