Fountain of Youth, or Valley of Death? The future of mankind is growing in the Sahara Desert. The government needs the best of the best military and scientific minds working out how to pull the secrets from the ZOO while keeping the deadly fauna and flora in check. Join intrepid adventurers in book 1s of six series as they take on the ZOO! Fight For Life and Death. Fighting hard, multiple countries band together to successfully pause the apocalypse. So what did the military want with Dr. Christopher Lin?