Ella does not like being touched so she usually sits at the back of the bus, but today she is at the front of the school bus when something strange happens--the actual seats at the back start pushing forward like a giant compacter, driving all the children together until all are crowded into the single remaining row, threatening to crush them all.

"A 4D book." "See a video interview with the author and discover more titles in the series when you scan the book with the free Capstone 4D augmented reality app"-- Publisher.