Pleskit and Tim swap lunches, leading to unforeseen consequences in this fourth book of the hilarious, fast-paced, and accessible sci-fi series Sixth-Grade Alien from the bestselling author of Aliens Ate My Homework, Bruce Coville.When Tim has a peanut butter sandwich packed yet again, he and Pleskit decide to swap lunches. Tim is pleasantly surprised to find that while Pleskit&’s squambul smells terrible, it tastes like chicken. But Pleskit has an altogether different experience when he eats peanut butter for the first time. Turns out, he&’s allergic! And Pleskit&’s reaction can&’t be solved by a trip to the nurse&’s office—he is absolutely, hopelessly lovestruck! Not in his right mind, Pleskit quickly gets into trouble. If he doesn&’t find a way to fix things, he may have to find a new school—or a new planet!