The First Cat in Space and the Baby Pirate’s Revenge

In the fourth installment of Mac Barnett and Shawn Harris’s New York Times bestselling series, the heroic trio of First Cat, LOZ 4000, and the Moon Queen take on Captain Babybeard and his crew of swashbuckling pirates.

Robot-dog rovers on Mars! A nefarious banana! And a lot of other freaky stuff that really scares First Cat . . . that’s what’s in store for our feline hero and his friends in the next cataclysmic chapter of our bestselling blockbuster series.

When the notorious pirate Babybeard is mutinied and marooned on a deserted island, the Moon Queen enlists him as a privateer, and he’ll have to learn to rely on others to reclaim his ship—and restore his infamous reputation as the most dreaded pirate roaming the spacewaves!

© 2025 HarperAlley (Audiobook): 9780063415539

Release date

Audiobook: 4 November 2025