Masterton has written a *lot* of books, of which I've read a few. Of those, I'd have to place this one somewhere in the middle.It starts out great, builds on some interesting ideas about the flexibility of time, if you use the right kind of architecture, and keeps your attention and continues to be creepy for about 3/4 of the way. Then it seems like Masterton gets lazy and relies on some horror cliches that will make anyone who has seen a few horror films groan. One of the characters even thinks to himself that the situation he's in is like the film "Don't Look Now". The characters do things like walk around a spooky house separately when they know it's dangerous. That's like a joke out of the first "Scream" movie! And there are scenes that will remind readers too much of "The Shining".Because this book started out so well, I can rate it higher than Masterton's "Basilisk", but it comes nowhere near the level of "The Hell Candidate" and "House of Bones", both of which I recommend.