The Daughters of Artemis by Lauren Wright Douglas

It's not enough that the so-called Full Moon Rapist is prowling the streets of Victoria, BC. Sean Macklin has just been paroled. this particular man, the personification of everything Caitlin holds evil, is the reason she left the Crown Prosecutor's office years ago to ply her lonely and demanding profession.

The release of Macklin, who has sworn vengeance on his victim and on Caitlin herself, coincides with Caitlin's newest case: to find Jess, heir to a trust fund, who has secreted herself within a woman's commune.

Also published as ' Chasing the Shadow'