This is a truth about growing up: Once in your life, sometime after your first memory but before you can drive a car, something is going to happen to you that doesn't happen to anyone else you know. It might be something good. It might be something bad, or special, or funny, or shocking. For Millie, it's something really sad. Lolo, her neighbors' infant daughter, dies unexpectedly, suddenly, inexplicably, on the night Millie babysits. It's not Millie's fault. There's nothing she could have done. And there's nothing she can do now. So how does she go on? She does what you'll do. She finds her way.