Mystery. Malice. Revenge. Broken bodies and bloody messages are appearing in the darkest corners of New York City. Infected werewolves are roaming the streets attacking innocents. The Dark Council needs answers. They summon Simon and Tristan to investigate. Their evidence points to the work of a powerful mage, unfortunately, there is only one mage in the city powerful enough to cause this kind of infection-Tristan Montague. Now Simon and Tristan must locate the source of the magical infection before the Dark Council declares Tristan a dark mage, destroys the werewolves, and shatters the fragile peace in the supernatural community. Join the Montague and Strong Detective Agency while they are hunted and chased. All while trying to uncover the identity of their unseen enemy before it's too late!