My sister and I are fans of Preston and Child's series around FBI Special Agent Pendergast, so I was really waiting for this one to come out. In a similar fashion to the previous book, "Brimstone," this one ends with a cliff-hanger in the epilogue. This one had less of a "supernatural" feel to it, but it was a solid thriller nonetheless. I did not feel this one was nearly as good a read as any other in the series, though, so I can't recommend it as a starting point to get you interested in the series, but if you are already a fan you will not be disappointed.