Possession

When a comatose woman suddenly wakes up and starts painting scenes
she's never witnessed, with a skill she's never had, medical science has no explanation. As more bizarre phenomena manifest, even her doctors start
to wonder if the woman may be possessed. Frustrated and frightened, the
patient's sister reluctantly turns to Greywalker Harper Blaine to discover
who—or what—is occupying her sister's body.



As Harper digs into the case of apparent possession, she discovers other
patients struck with the same mystifying afflictions and a disturbing
connection to one of the most gruesome stories in Washington's history...