Walking Shadow — Emma L. Adams

The trouble is, what Ash does know might just get her killed.

Sufferers of the dangerous magical condition known as the vampire's curse are being brutally killed, and the latest victim is Leo's guardian, the ex-head of the Venantium. Ash determines to help Leo find out what's really going on, but it isn't long before events are spiralling out of control. The dead are rising from their graves, and the barriers around Blackstone are threatened by a demon which looks exactly like Ash herself. Can Ash stop a killer before she's blamed for its crimes?