On her fifth birthday, a little girl has an unusual birthday wish. She wants to go back to being a baby in her mother's tummy. That way she'd never have to go to bed early, and she'd always be close to her mommy. But when she realizes that babies in tummies can't go to birthday parties or play with their friends, it suddenly doesn't seem like such a good idea. Could the real reason for her wish be that there's a new baby in Mommy's tummy already? Playfully exaggerated illustrations convey the child's complex emotions about a new baby and capture the gentle humor of this fresh take on sibling rivalry.