Polaris, the North Star, has called the first Constellation Congregation in centuries. Every single one of the Constellations in the night sky will descend on Los Angeles to hold court in plain sight of the mortals in an event disguised as a fan convention. Enemies new and old circle around them, trying to tear the Hunt itself apart.

As long as he can remember, Castor has wanted nothing more than to fuse with a Cor Heart. Made from an otherworldly metal, it would give him the ability to bind a Symbol and manipulate the elements. The day of trial has finally arrived—a chance for Castor to prove his worth. Only after winning the Empress’ blessing can he begin his life of adventure. When his chance is interrupted by a vicious attack, he finds his home in ruins and his family in mortal peril.

He’s not crazy. They really are following him. Matt owes the Queen of all Fae a phone call, and she is tired of waiting. But she's not the only one looking for him. A fallen angel has escaped Hell to settled their dispute with Matt—permanently.

Matt has a terrible life. Seriously—it's awful. It is so bad that Dan the Demon is shocked when Matt turns down his infernal offer: 10 years of a blissful life in exchange for his soul. But Dan is a salesman behind on his quota and his demonic managers are running out of patience. He forges Matt's signature on the dotted line, stealing his soul and thrusting him into a supernatural world he never knew existed. Matt must learn to navigate the hidden society of demons, faeries, demigods, and worse.

Mercy Thompson is a shapeshifter, and while she was raised by werewolves, she can never be one of them, especially after the pack ran her off for having a forbidden love affair. So she’s turned her talent for fixing cars into a business and now runs a one-woman mechanic shop in the Tri-Cities area of Washington State.