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The Alien Adventures of Finn Caspian #4: Journey to the Center of That Thing - Hardcover

The Alien Adventures of Finn Caspian #4: Journey to the Center of That Thing - Hardcover

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by Jonathan Messinger (Author), Aleksei Bitskoff (Illustrator)

Finn Caspian and Explorers Troop 301 dive into the belly of a planet-sized alien in the fourth book of this illustrated chapter book series based on the award-winning kids' podcast!

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 illustrated story to tear through. They contain no violence, a little bit of suspense, and some aliens who are real chuckleheads.


  • Space Adventure for Kids: Explorers Troop 301 thought they were landing on a boring planet. Turns out it wasn't a planet at all--and now they're on the menu!
  • Middle Grade Humor: Getting swallowed is just the beginning. Can Finn and his friends survive thirty-five bizarre stomachs, outsmart a computer that tells dad jokes, and escape a planet-sized alien with an attitude?
  • Teamwork for Kids: Faced with an army of "ANTibodies" and no easy way out, the crew has to rely on each other's unique skills to survive the weirdest field trip in the galaxy.
  • Books Based on Podcasts: Based on the award-winning audio series, this illustrated adventure is perfect for fans of the podcast and new explorers alike.
Number of Pages: 128
Dimensions: 0.8 x 8.3 x 5.3 IN
Illustrated: Yes
Publication Date: August 24, 2021