Twelve-year-old Natalia Rose Baleine Gallagher loves possibilities: the possibility that she’ll see whales on the beach near her new home, that the boy she just met will be her new best friend, that the photographers chasing her actor father won’t force Nat and her dad to move again. Most of all, Nat dreams of the possibility that her faraway mother misses and loves Nat - and is waiting for Nat to find her.

The thing is, Nat doesn’t even know who her mother is. She left Nat as a baby, and Nat’s dad refuses to talk about it. Nat knows she shouldn’t need a mom, but she still feels like something is missing.

In this heartfelt story about family, friendship, and growing up, Nat’s questions lead her on a journey of self-discovery that will change her life forever.