The gateways linking the great libraries are no longer safe. Now the human world is experiencing violent attacks by unknown creatures as Conemar, with a compelled Nick by his side, readies his crazed army to rise against the Wizard Council and the Mystik League to take over both the Mystik and human worlds. In the safety of a hideout in Ireland, Gia prepares herself for the great battle. With Arik and the other Sentinels' help, she locates the rest of the Chiavi within the libraries and sets out to destroy the Tetrad. The journey is harrowing, and Arik tries to reconnect with Gia, but her conscience stops her from betraying Bastien, even though her heart screams for Arik. When Conemar and his men catch up to them, Gia must fight Nick to the death or give up both worlds and everyone she loves.