The Grosse Adventures manga chapter book volume 2: Stinky & Stan Blast Off — Annie Auerbach

When aliens from outer space land on the roof of Stinky and Stan's home, will it be the beginning of the war of the worlds? These aliens worship the Grosse brothers for their farting abilities -- the gas the boys boldly blast causes plants to grow and flowers to bloom on the aliens' planet. But upon inspection of the boys' room, the aliens are presented with quite a fright. Hold your nose and hang on for an out-of-this-world adventure!