Unholy will get your attention! Debra’s skillful writing brings to light how easy it is for one to unknowingly open doors to things that may seem innocent, but are anything but.

Isn’t that one of the oldest tricks of the enemy?

-- Darya Crockett, Co-Owner of Coastal Editing

Tantalizing, fast-paced…Unholy challenges readers to look beyond what they see into the realm of the unseen. Diaz delivers with a fascinating and “unholy” haunting.

-- CBM Christian Book Reviews

Unholy is a novel that stirred my emotions and yearnings while I faced the unknowns brought forward in this fascinating story. It pushes faith to its edge against the darkest of spiritual battles, in spectacular events that force its characters to their breaking points.

Do you believe in God? The Devil? Fallen angels? Redemption?

The majesty and mystery of Chateau Valkenburg is told in vivid, heart-racing scenes to keep you reading until the last page, setting its characters and haunting setting firmly in mind, ready for a sequel!

-- Jan Fallon, author of Campsite Six