Erin is a young psychologist, with no time for anything but her work, and unable to remember anything about her past. She leads an uneventful life, but a lonely one, in which she secretly wishes for a soulmate... Conner is an unusual patient who approaches her, thrusting her into a strange world of darkness that runs beneath our own. He believes himself to be a creature of legend-a werewolf. But he also draws Erin with a roguish charm, and an irresistible feeling that seems to bind them together... Conner desperately tries to save her from an unknown evil that pursues her with a relentless passion that crosses centuries, an evil that once took her very soul away, somewhere in Erin's lost memories. As she becomes more entwined in a series of events that will remind her of who she really is, will she make it away from the oncoming darkness unscathed...?

Erin is the werewolf Queen of Athol Castle. She has no memories of the events of a few months ago, where she believed herself to be a psychologist, and met the enigmatic and charming Conner... Filtiarn has taken over Conner's body once more, and is relishing being in control. Cruel and sensual, he decides to work on a plan...to take over humanity. He begins a war...of werewolves against humans. But unknown to him, Conner is fighting against him within his own body, to set things right, and to bring Erin back from her own darkness. He tries to undo a great mistake from long ago, using Erin's famed sword, Sioctine, as remnants of his own memory come back to him, opening up the present he now lives in. At the same time, another enemy is using the situation to their advantage, following the werewolves at every turn, threatening to undo everything that Conner is struggling to obtain... But will he be able to bring Erin back from Filtiarn's grasp, or is it too late? And will he be able to stop the war against the humans progressing? And who is threatening to take over not only the humans, but the werewolves as well?