Pandemonium
Daryl Gregory's debut novel offers a unique spin on the possession subgenre by proposing an alternate reality in which random possessions have occurred on a regular basis since the 1950s. A swarm of devils takes possession of a person, wreaks havoc, and then jumps to a new host. Del Pierce was possessed as a child and thought he had been exorcised. Years later, he finds the devil is still present and is desperate for control. Pandemonium is a horrific page-turner that's equal parts pop culture and tragedy; it's one of the more unique horror books in recent memory.
Del Pierce was possessed as a youngster by the Hellion, a mischievous demon whose pranks may be lethal. He was finally cured, but Del discovers years later, during a period of personal sorrow, that the exorcism was less effective than he thought... and that the Hellion may never have departed.
With the demon's presence in his brain threatening to take over, Del embarks on a journey to seek aid from anyone and everyone he can find, including neuroscientists, Jungian psychologists, a female Catholic priest, fantasy authors, and others. But there's more to Del's situation than everyone realized, and he might have to dive into the nature of possession itself to save himself and his loved ones.
Detailed information:
Author: Daryl Gregory
Genre: Sci-Fi, Horror
Link to buy: www.penguinrandomhouse.com/books/71694/pandemonium-by-daryl-gregory/