I thoroughly enjoyed this fast paced, educational and highly entertaining story. I took it on vacation with me and found that I was missing a lot of snorkeling while reading with enjoyment. It moves like lightening and strikes with intensity, blasting me with adventure everywhere it finds it -- on top of the Rocky Mountains, in NORADs impregnible bunker city, and even inside Chicago's hundred-year-old water tunnels beneath Lake Michigan. This book steps far apart from the run of the mill techno-thriller to a much higher level of fun and adventure all to itself. This is the second book I have read by Mr. Massucci ("CODE:ALPHA" was the first) and I look forward to the next adventure. Excellent, excellent entertainment!