This book, my first by this author, was pretty good, though not of the caliber of the Lisas' work (Jackson and Gardiner). I felt the story was at least 50, maybe as many as 100 pages too long. The premise was somewhat original, somewhat implausible as well, but okay. There were even a couple of unexpected turns, but it took quite a while to get to them, plenty long enough to pretty much figure outwit was going to happen.