In the days after Darklight, the Avalon Theatre has burned to the ground. The shadowy figure poisoning King Auberon is still at large, and Kelley and Sonny are torn apart—because of the lie Kelley told that changed everything.

Now Kelley tries to pick up the pieces of her shattered life, while Sonny takes refuge with a band of Lost Fae in an abandoned reservoir beneath Central Park. But those who would steal the Green Magick are not finished yet. A final showdown is coming, one that will put Sonny and Kelley's love for each other to the ultimate test—if they survive that long.

A cast of vivid characters returns—among them, Summer Fae Tyff, trickster Bob, Mabh and Titania, and the dangerously alluring Fennrys Wolf.