Sanctuary is falling. The city was built by Time itself in order to house criminals throughout existence whose crimes were too great to be punished by their own eras. Governed by Time's twelve Hours, the occupants of the city have existed restlessly just outside of the perception of linear time, and while a few have reformed, many have spent the unchanging days waiting patiently for a chance to return to old habits. The stability of the city depends on the unwavering loyalty of Time's servants to their mistress, but as the days pass and the city changes, it becomes clear that there are traitors among the twelve. Lia Caglione does not like vampires. Unfortunately, it seems that her new position as a Dreamwalker means that she gets more than her fair share of them. The Jaeger family are the social elite of the supernatural world, and Lia is pretty sure that they're out to make her life overly complicated. After all, on top of convincing her that she has to find and stop the nightmare that has been murdering witches in their sleep, they've dragged her into the perils of a parallel world, and its leader likes Lia less than Lia likes vampires. The fate of two worlds depends on a witch who has no idea how to use her powers, and a cluster of supernatural beings whose instincts pit each of them against each other.