Dracula's Match

Cammy and Vlad are back!
Cammy is still grieving after violent death of her friend Heather, but her life is about to get way more complicated. First, there's the appearance of children who can turn invisible; then a stalker huldra — a magical creature with a tendency to kill her lovers — follows her to her place of work; and there are all the unanswered questions her friends keep asking her.
But  it isn't just Cammy having problems; Vlad must deal with a formidable adversary. A draugr is loose in Seattle and is destroying Seattle tourist hot spots, killing anyone unfortunate enough to get in his way or run across his werewolf buddies. Even Dracula cannot subdue him, and a draugr is even harder to kill than a vampire.   
Unless Vlad and Cammy can figure out a way to stop him, her friends will be in danger, not only from supernatural monsters, but from government agents increasingly desperate to keep the supernatural secret.