A word of caution, Miss Nightingale. A new song whispers on the horizon. Make sure yours is louder.
Something is happening in Celessinora. Bizarre acts of unprecedented violence seek to disrupt the order Kai and Mara have established in the city, bleeding out beyond the underbelly and into civillian streets. What's worse, Mara seems connected to it all, her strange dreams coinciding with each gruesome attack.
Then comes the arrival of four new enemies, bringing with them haunting truths from centuries before. Mara might be ready to let go of the past, but is it ready to let go of her?