Kid-Zilla and the Invaders from Planet Aargh!

"When the Earth is invaded by extra-mean extraterrestrials and ginormous monsters, Zoe and her kid brother Pablo think things can't get any crazier. But then their school gets infiltrated by aliens and Pablo gets turned into a massive monster himself! For some kids, being suddenly supersized might be scary. But for Pablo, it's the beginning of an incredible and hilarious adventure. Instead of going berserk, our colossal kid hero continues to obsess over video games, trading cards, and cookie dough ice cream. Zoe soon realises that he's the same annoying little brother as ever ... except that now, her "little" brother is 100 feet tall! Can a schoolkid in the body of a skyscraping monster take on an entire alien army? Can Zoe and Pablo keep it together when the whole world is going 100% bananas? Find out in ...Kid-zilla!"--Amazon.com.