From Dav Pilkey, creator of Captain Underpants, and acclaimed artist Dan Santat, an out-of-this-world friendship adventure with all-new full-color illustrations! Ricky Ricotta and his Mighty Robot are ready for the best day ever!Today is Ricky's birthday, and it's off to a great start! After peanut-butter pancakes and presents, Ricky's parents are taking him and his Mighty Robot to see dinosaurs at the museum. And they have a surprise for Ricky: His cousin, Lucy, is coming with them! Ricky thinks Lucy is a real pest. Suddenly, things aren't looking so sunny anymore.At the museum, there is another surprise in store. General Jackrabbit, an evil genius from the planet Jupiter, is jumping for joy! He has just created three Jurassic Jackrabbits to help him take over Earth. Can Ricky and his Robot beat these big, bad bunnies? Or will this end up the WORST birthday ever?

Ricky Ricotta and his Mighty Robot crash the family's mini-van while using it as a skateboard, and they have to earn some extra cash fast to pay for repairs. Meanwhile on Mars, mean Major Monkey is making plans to enslave all of mousekind. Illustrations.

A small mouse named Ricky Ricotta and his best friend, a giant flying robot, attempt to save the Earth when an evil Martian monkey and his mechanical creations attack. Simultaneous.

From Dav Pilkey, creator of Captain Underpants, and acclaimed artist Dan Santat, an out-of-this-world friendship adventure with all-new full-color illustrations! Ricky Ricotta may be small, but he has the biggest best friend around!There's nothing better than being buddies with a giant flying Robot. Ricky's Mighty Robot always gets him to school on time, keeps bullies away, and even helps out with homework. These two friends do everything together!When Mr. Mosquito, a meanie from the planet Mercury, invades Earth with his Mutant Mosquitoes, Ricky and his Robot rush to the rescue. But with the Mighty Robot in deep danger, Ricky will have to be brave on his own to save the day!

Meet Ricky Ricotta. He's an ordinary mouse with ordinary problems-sometimes he gets picked on at school and feels a bit lonely. Then, one day, a giant flying Robot enters his life! The evil Dr Stinky has created the Robot to try to destroy Squeakyville. But the Robot doesn't want to harm the mice, and he tries to escape his conniving creator. Thing is, he can't-not without Ricky's help, that is...Together, Ricky and the Robot must defeat Dr Stinky and save the city!

A small mouse and his best friend, a giant flying robot, attempt to save the Earth when an evil Martian monkey and his mechanical creations attack.

From the creator of CAPTAIN UNDERPANTS, comes an out-of-this-world friendship adventure - now in full colour. In this fourth illustrated adventure novel from bestseller Dav Pilkey, a small mouse named Ricky Ricotta and his best friend, a giant flying Robot, save the world from mean Major Monkey.