After being blamed for the passing of the vice president's daughter, the witches leave the army behind and become fugitives - but staying out of trouble is never easy. While Raelle and Scylla enjoy their reunion, Nicte tempts Tally with a new power.
The group seeks sanctuary in the mysterious Cession. The Unit learns the Camarilla is directly targeting the Mycelium, inspiring them to strike back. Petra and Anacostia work to determine President Wade's allegiance.
With the Cession Marshal on their heels, the unit splits up; Tally, Abigail and Adil meet an ally.
The Unit spends the Yule holiday plotting their next steps. Alder seeks out another steward of the First Song. Hearst, President Silver, and Kara Brandt celebrate a victory.
The Council of the Great River convenes to hear the unit's testimony.
Tally reunites with her mother and finds a reason to keep fighting; Abigail and Adil return.
Allies converge to protect the Cession from occupation. Meanwhile, Tally and Scylla team up.
The unit races to rescue a captured ally; Alder and Tally journey to retrieve the First Song.
Abigail, Raelle, Tally and Scylla face their fates at a government trial.
In a climactic battle, the Unit and their allies team up to fight the Camarilla. Alder races across the world to find the final piece of the First Song.