Marlon the monster is ready for a rousing game of Musketeers with his friends Basher, Boomps-a-daisy, and Alligatina. But when it’s finally his turn, the rules suddenly change—and Marlon discovers that being "All for One" isn’t as straightforward as he thought. A charming story about teamwork, fairness, and unexpected surprises, filled with Jill Murphy’s warm humor and inviting illustrations.