Zaya Wayward has survived battles, dark magic, and bloodthirsty rituals. But despite these hard-won victories, she's still not safe.

In the escalating fight against Morgomoth, now she must play the most crucial role in the war. Zaya must use The Bone Grimoire to unite the Larthalgule and Neathror blades to defeat the merciless leader of the United League of Dissent.

Fighting against old enemies and new ones, Zaya and her friends will need to gather their strength to survive the brutal world of Orthrask as they navigate the perilous journey to Morgomoth's Kingdom. But determination might not be enough, especially when Jad, the person Zaya loves and trusts the most, is cursed to loathe her.

As secrets, lies, and betrayals are exposed, fighting for freedom could cost Zaya and her friends the ultimate sacrifice.