Caitlin is 11 years old, and she’s a bit lonely. She lives on Middle Island in the middle of nowhere, and her dad is always away working. One night, a storm blows in something very strange on the beach of the island. It glows, it eats books, and tries to mold itself into the shape of other humans! It’s an alien! Caitlin names her new alien friend, Perijee, and she tries to teach him about the world.
There’s only one problem, though – Perijee won’t stop growing. The army and the police are trying to hunt him down and because he’s scared, Perijee disappears and starts causing trouble! Oh no! But only Caitlin knows it’s fear that makes Perijee grow!
Caitlin must leave home and travel across the country to try and convince Perijee to stop destroying everything before it’s too late! It’s a book packed full of friendship and adventures from another planet.