Ricky Ricotta's Mighty Robot Vs the Mutant Mosquitoes from Mercury: Bk. 2 Dav Pilkey
Ricky and his Robot are enjoying their new-found friendship-Ricky's finding that having a giant flying Robot around can be very useful. Like, if you're late for school, or if you need a pencil sharpener in an emergency...But their quiet life is disrupted by a plague of mutated mosquitoes from Mercury, led by the dastardly Mr Mosquito, who wants to take over the Earth! can Ricky and his Robot save Squeakyville, the planet and finish Ricky's maths homework, all in one day?!