This book, by Lexxie Couper, is fantastically chilling. I loved every minute of it. It's about possession in more ways than one. I can't reccomend it enough. The characters are going to stay with me for a very long time.

Here's the blurb:
Temptation…

Jared died twenty years ago. Now he’s trapped between Heaven and Hell, sent back again and again to protect those whose time has not yet come. Never before has he been tempted by the desires of mortal flesh. But then, he never had to watch over Tess Darcy before. For Tess he’ll break every rule, even if it costs him his immortal soul.

Haunted by nightmares of the stalker who nearly killed her, Tess has buried herself deep in the Australian Outback to escape her past. But Kangaroo Creek isn’t quite the quaint little town it looked on the map. Nothing is what it seems here. Every night, the same incredibly hot erotic dreams visit her, leaving her wanting more. The Librarian’s channeling demons, and the postmaster assures her the handsome hunk she just ran into is dead.

Other than that it’s a peaceful little town… until the man who nearly killed her returns from the dead. Is Jared the man of her dreams? Can he save her from her nightmares, or will the magic that haunts this town consume them both?