The Alien Adventures of Finn Caspian: Journey to the Center of That Thing

Finn Caspian and Explorers Troop 301 dive into the belly of a planet-sized alien in the fourth book of this hilarious chapter book series based on the award-winning kids’ podcast, and read by the author, Jonathan Messinger!

Explorers Troop 301 has explored a lot of planets hoping to find a place to call home. But their latest mission feels like the most boring ever—until they get chased by giant ANTibodies straight into the planet’s open mouth! Uh-oh! This planet is really a ginormous, planet-sized alien and the explorers are her lunch!

Can Finn and his friends make it through all thirty-five stomachs, battle an army of ants, out-whiz a super-computer in a deadly game of trivia, and find a way out? Or are they doomed to be part of the planet’s balanced diet?

The books in this series are for kids ages 7 to 12 looking for a funny story to tear through. They contain no violence, a little bit of suspense, and some aliens who are real chuckleheads.

© 2021 HarperCollins (Audiobook): 9780063083394

Release date

Audiobook: 24 August 2021