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The boys and their classmates visit the Booktastic Bus to find books to read. When the Chickenlover, later revealed to be the Book Mobile Driver, is at large, Officer Barbrady uses books from the bus in order to find and decipher clues left behind at crime scenes by the Chickenlover.
The Booktastic Bus is a blue bus with images of clouds, rainbows, kids, and various slogans about the benefits and joys of reading. It also has the words "BOOKTASTIC BUS" in rainbow lettering.