Summary

After having to kill several werewolves, Charles is beginning to crumble mentally; he's seeing ghosts and starting to give in to his bloodthirsty instincts. So he and Anna are sent to Boston on a special mission -- assist the FBI on a serial-killer case that has lasted decades. The killer initially had a straightforward pattern (Asian teenagers), but began including werewolves and fae. Each one was carved with witch symbols, raped, and finally murdered. Now the human daughter of a high-ranking fae has been kidnapped, and the FBI/werewolf team has only hours to find her. But the case becomes particularly strange when they discover that a long-dead witch and a bizarre kind of fae may be involved in it. And unless they figure out who the killers are fast, Anna might be their next target.