" Set in a modern-day "cold war" Sentinel takes place in Russia and eastern Europe as CIA/MI6 agents rush to find who is killing their double agents -- a man who wants to start the nuclear war to end all wars. I am not a big fan of nuclear war novels, but found myself drawn into the single life of Will and his mission. A compassionate, yet well-trained MI6 agent, Will seeks out his captured friend to help resolve the impending war. Filled with travels throughout Europe and Russia, Sentinel is a good read for a long winter night. My one complaint with the author was his bouncing back and forth between metric and US scales, most particularly MPH/KPH. Being set in Eastern Europe and Russia, I would stick with the metric conversion. All in all, I recommend it if you don't mind a lot of killing and some visual gore. "
— Mark, 2/19/2014