Phantasm

The newest in a series that's "part paranormal whodunit, part urban fantasy"("Publishers Weekly") by the author of "Wraith" and "Spectre."
Just when ZoA Martinique, formerly ordinary twenty-something, was getting used to the idea that she was possessed of extraordinary powers, she lost them. Without cause or warning. And at the worst possible time.
Now, unless she can figure out how to go Wraith again, she won't be able to rescue her mother, whose soul is trapped on the Abysmal plane.
Her only hope is to join forces with an old enemy, who has his own dark reasons for helping her. From him she learns that only a traumatic experience can bring the Wraith back. To get out-of-body, ZoA will have to look for big, dangerous trouble-and fast.
For there is a deadly and powerful being within the Abysmal that wishes ZoA never existed...and it's coming for her.