Ninja Baby by David Zeltser
From the day she was born, Nina was a ninja baby. She obliterated her applesauce. She concealed herself at bath time. And she was training herself in advanced infiltration (of movie night). Nina wants to do everything by herself, until the day her parents bring home a Kung Fu Master (a baby brother). Now with a sibling, Nina will face the one thing she cannot do alone: be part of a family.
Illustrated by: Diane Goode