3.5 stars, rounding up to 4. I gobbled this down in a day, it was such an easy read. Though when I say 'easy", I'm not referring to the subject matter, which was pretty grim, but the nice smooth prose and the compelling storyline, which made me keep just keep turning pages.

Anyway, there's an interesting premise here: a serial killer comes into possession of a house which allows him to travel through time. Concentrate when he leaves and he's in the 1930s, concentrate again and the next time he leaves he's in the 1980s, and so forth. Said killer is sadistic and more than a little insane and he bounces about the timeline, linking his victims in a number of ways... until he botches a murder. Kirby survives, thanks largely to her poor, doomed little dog, and she begins to hunt in turn. It's sort of cat-and-mouse through time, and it's really interesting to read. I did, to be honest, get a little tired of all the depictions of the different murders - if there's one thing that's hammered over and over again in crime fiction it's the tortured death of women - and the reliance on that trope is what's keeping this from an unmitigated 4 stars. All the victims are given some sense of life by the text, but it's a brief sketch for most of them, and to be honest I'm failing to see why this story had to focus on the determined butchery of women as opposed to a broader victim set.