Ragnarok

This has got be the most frenetic, breakneck paced book in the series so far. If you don't strap in at the beginning, forget it, you're gone. This book takes off at the very beginning and then there's no stopping it. Add to that all of the staples of a Jack Sigler (Chess Team) thriller, great characters, nasty monsters, creepy locations, witty dialog, and at least two dashes of sci-fi for flavor. A five star read, no doubt in my mind. Loved it.