Will kissing his elbow really turn Marvin into a girl? That's what Casey Happleton claims, and Marvin starts to believe her after his lips "accidentally" brush his elbow. A lighthearted look at the mysterious differences between the sexes.<br />Marvin Redpost may be deluded, he may be dreaming, he may be filled with anxiety, but he's never boring! The typical third-grader has ALL the fears and trepidations that any kid might, and then some. Always hilarious, readers will eat him up.