Some people have the Sight. Genevieve Scelan has the Scent.

They call her "Hound," and with her unique supernatural sense Evie can track nearly anything-lost keys, vanished family heirlooms . . . even missing people. And though she knows to stay out of the magical undercurrent that runs beneath Boston's historic streets, a midnight phone call from a long-vanished lover will destroy the careful boundaries she has drawn. Now, to pay a years-old debt, Evie must venture into the shadowy world that lies between myth and reality, where she will find betrayal, conspiracies, and revelations that will shatter all she believes about herself and the city she claims as home.

When the Hunt is on, the Hound must run . . .

The hunter has become the hunted...Red Sox fanatic Genevieve Scelan-known in Boston's undercurrent as the supernatural tracker "Hound"-has made a bad bargain. Evie wishes she could leave magic behind, now that she's eradicated the evil cabal that oppressed the city for centuries. But now her talent is fading, the local adepts' squabbles are turning ugly, and, worse, she's just discovered that she owes a very large debt to someone...or some thing. And in the undercurrent, debts are taken very seriously.

Evie has until midwinter to pay up...or else. She can't pass up the job that might save her-even if she's breaking all her own rules to take it. Now, with danger at her back and uncertain allies beside her, she'll trace the very bones of Boston itself to protect both the city and the people she loves.

Genevieve Scelan thought she was done with magic.

She was wrong.

Sure, six weeks earlier Evie—bike messenger, supernatural tracker, and avid Red Sox fan—had been instrumental in bringing down the Fiana, the organization of magicians that had ruled Boston's undercurrent for hundreds of years. But now they were gone, Boston could breathe easy again, the Sox had a chance at the pennant, and Evie was ready to relax.

Except it turns out that when you take down the guy on top, everyone assumes you're going to fill his spot, and now Evie finds herself at the center of a whole lot of unwelcome magical attention. On top of that, a new client needs her to call up a family ghost and ask about a stolen inheritance; Evie's friend Nate has a supernatural problem of his own; and a legendary pack of hounds has been terrorizing Boston's undercurrent. And try as Evie might to deny the legacy that runs through her blood, when the Hunt is called, the Hound must run . . .