Seventeen-year-old Aziza El-Amin, the only hedgewitch in Blackthorn, Massachusetts, teams up with a cursed boy looking for answers and a young necromancer in order to eradicate a new threat in the woods and take back her hometown.

Roda isn't afraid of the monsters that roam the wilds of the Aerlands. She's safe in her small town, which is surrounded by a wall of freezing, enchanted mist that keeps the beasts away. So when Roda rescues an injured crow on the instruction of her secret pen pal, Anonymous, whose letters arrive without warning and correctly predict the future, she's surprised to learn she's brought one of the so-called monsters home. Because her crow is really a...