Tess Logan knows magic. She knows how it works, why it works, and what it takes to make it work. But that’s not all. She also knows how to make it happen. It’s simply a part of who she is, for Tess Logan — despite all the other attributes that make her such a thoroughly modern woman — is also a thoroughly modern Witch.

No amount of magical experience or expertise, though, could have ever prepared her for this. In fact, she never even dreamed it was possible: A living, breathing set of spells cast more than a hundred years ago with enough stamina to follow her into the present day. Yet, here it is, writhing and twisting with activity, permeating every sector of her life, and slipping its tentacles into the lives of everyone she holds dear. Now, she’s faced with having to disentangle each slippery strand and destroy the magic without destroying those she loves — or herself.