Some kids lose their homework. Some kids lose their math book, or their sneakers, or their lunch. Pleskit Meenom, first alien kid to go to school on Earth, has a bigger problem: He's lost his grandfather's brain! Of course, that's not Pleskit's only problem. Sixth grade is turning out to be a bigger challenge than interplanetary navigation. If Pleskit can't find that missing brain, none of his other problems will matter, because his life won't be worth a plug skeelrag!