The desperate search for his missing daughter will take a father to hell and back...

A smart, thrilling, utterly unnerving novel. Pyper's gift is that he deeply respects his readers, yet still insists on reducing them to quivering children. I like that in a writer -- Gillian Flynn 'The Demonologist is that rare thing - a novel that is both genuinely terrifying and erudite. The research is excellent and lightly worn, the pace and cleverness of the plot thrilling, one of the most exciting works of fiction I've read for some time' -- Kate Mosse Genuinely terrifying, don't-read-late-at-night stuff. Thrilling, compelling and beautifully written -- Sj Watson 'The Demonologist is a smart psychological thriller. Carefully crafted, claustrophobic and deeply, deeply creepy' -- Simon Toyne Richly crafted, deliriously scary and compulsively page-turning from beginning to end. Imagine The Exorcist and The Da Vinci Code as penned by Daphne du Maurier. Don't miss this one! -- Jeffery Deaver As compelling and smoothly chilling a tale as you'll find this year. The Demonologist shows an enormously gifted writer at the top of his game, producing a novel of eerie menace and unique depth. Those of us who write supernatural stories do not throw the names Ira Levin, William Peter Blatty, and Peter Straub around lightly. You'll be hearing all three associated with Mr Pyper soon, and all such comparisons are warranted, the highest praise I can offer -- Michael Koryta, New York Times Bestselling Author Of The Prophet Pyper is an intelligent writer, steeped in Miltonian symbolism, gifted with language ... This artful literary exploration of evil's manifestation makes for a sophisticated horror tale KIRKUS 'A mesmerizing and melancholy narrative voice lends chilling credibility to this exceptional supernatural thriller' PUBLISHERS WEEKLY Andrew Pyper is a rare breed. Reading The Demonologist is like running through a house on fire - you've got to get through; nothing will stop you. And when you're out, brokenhearted and bewildered, you're left wondering if what happened was real. That's Pyper's brilliance: he does it so well you never see the fiction -- Sarah Langan, Author Of The Missing Smart and astonishing ... The Demonologist holds a mirror to the reader and reveals the places where our deepest darkness lurks -- Brunonia Barry, New York Times And International Best Selling Author Of The Lace Reader And The Map Of True Places

Andrew Pyper was born in Stratford, Ontario, in 1968. He received a BA and an MA in English Literature from McGill University in Montreal, as well as a law degree from the University of Toronto. He is the author of four bestselling novels, including THE GUARDIANS and LOST GIRLS. He is also the winner of the ARTHUR ELLIS AWARD.