A "young YA" perfect for fans of Percy Jackson!

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Jackson Harper slays monsters on the sly.

He's a unicorn rider, a defender of the territory. But he has to keep that a secret, because technically he's supposed to be pure of heart to be approved for a unicorn bond, and his shady past rules that out. If the authorities catch him now, his monster-slaying dream job is all over.

But when a snake-dragon battle gets out of hand, he's forced to get help from a real rider: Moira Maldrigo. She used to be his best friend and unrequited crush. Now, she's duty-bound to turn him in to the unicorn regiment.

But the unicorns have a dark secret too. And when Jackson and Moira stumble on it, they're caught up in a battle that's much bigger, and deadlier, than they'd ever anticipated.