In the third children's book written by critically acclaimed, New York Times bestselling superstar Isabel Allende, Perla, the mighty dog, saves her human brother, Nico Rico, after he and his friend, a little girl dressed as a princess, get lost during a Cinco de Mayo party.

Perla is a mighty dog who has two superpowers--making people love her and roaring like a lion.

When her human brother, Nico Rico, gets into trouble with a girl he refers to as "the princess" while the neighborhood is out celebrating Cinco de Mayo, Perla knows it's up to her to save them both. But how will she do it?

In this charming and poignant story, Isabel Allende continues her series about the bond between a child and a beloved pet.