Let's see - a creepy Catholic school; a dark, winding labyrinth under said school; a secret, seriously creepy, chapel; rites of exorcism; possessed, de-possessed and re-possessed teens, both male and female; a troubled 15-year old boy; some yicky scenes with garbage, rats, and a decomposing body; a fanatical priest; an heirloom artifact; the Pope; a terrorist plot. Really over-the-top. A messy stew. My first book by John Saul - will not repeat the experience. I found it really easy to figure out who the bad guy or guys were while wading through blood and gore which made it all not just yucky, but boring - yuckily boring. Oh for Pete's sake, blow up them all up and get it over with! Horrific, but, for me, not horror at its best.