Bo wants to give his best friend, Annie, a big surprise, but what could it be? His new drawing is too scary, and he needs his marbles and his yellow tail sock for himself. The big round moon gives Bo an idea-he will bake Annie a full moon cake. When things don't turn out as planned, both Annie and Bo enjoy a big surprise-not to mention the warmth and fun that friendship brings. Humor and suspense are perfectly captured and cadenced here for beginning readers.