For as long as Evin can remember, he has dreamed of being a real hero. And when his entire village is kidnapped by evil monsters, he finally gets his wish. With the help of his friend Jorick, a young elf wizard named Betilivatis, and an ancient guidebook of magical beasts called A Practical Guide to Monsters, Evin treks through ancient ruins and faces all kinds of strange and terrible creatures on his quest to find his family.
But soon, Evin realizes that not everything is as it seems. Why is Betilivatis sneaking off to report their every move to someone only she can see? Why can’t Evin remember anything before the day of the kidnapping? Why does it seem as if someone—or something—is controlling the monsters and drawing the three friends deeper into a battle they might never win?