Two news kids. The Shiverribas, Ralph and Aiden Shiverriba move to Canterlot High. The Rainbooms notice Ralph is hiding something. But what? They soon discover that there is a reason Ralph is strange. He writes books, not just ordinary books. Horror books! That's not even the weirdest part, the books are actually a prison for all his monsters. Trapped.

When the Rainbooms accidentally release them all. The Shiverribas and Rainbooms must work together to get all the monsters back in their books, before the town is overwhelmed and destroyed by monsters.

Reader beware, your in for a scare