Ricky Ricotta's Mighty Robot vs. the Mecha-Monkeys from Mars (Ricky Ricotta Series #4)

In this fourth illustrated adventure novel form bestseller Dav Pilkey, a small mouse named Ricky Ricotta and his best friend, a giant flying robot, save the world from mean Major Monkey.

Ricky Ricotta and his Mighty Robot are in big trouble. After crashing the Ricotta family mini-van while using it as a skateboard (it's the only thing big enough for Robot), they have to earn some money quickly to pay for repais. While they're thinking how on EARTH they are going to come up with the mone…