A More Ancient Evil (A More Ancient Evil #1)

There is a realm more wretched than Hell.

Its gates have been opened in the basement of a sorority.
A group of sorority sisters gather in their dark cellar to break their boredom. Sophomore Wynette Strode pulls out an antique conjuring book, and the girls set to work.
They draw the chalk circle, light the candles, and chant the unfamiliar words.

Then come the footsteps.
And the possession of one of their own.

Desperate for help, Wynette and the other girls turn to parapsychology professor John Walter and his clairvoyant wife Judith for help. The professor invites his top student Arnie to assist with the exorcism, but Arnie soon realizes this is no ordinary demonic possession.

This is a more ancient evil.

Can Arnie and the Walters save the sorority from the grasp of something sinister before they are dragged into a fate worse than Hell?

For fans of Grady Hendrix, Nick Roberts, William Peter Blatty, Laird Barron