The Tomb of Heaven. Fathom's Five, #4

There is a man who changed the course of Russian history in his quest for the ultimate power. There is a hidden tomb that holds the secret to eternal life. There are five keys that can unlock the riddle to something every man desires-immortality. From the islands of Mauritius to the streets of Karachi, from the rooftop terraces of Park Avenue to the ice-capped rooftop of the world, can New York adventurer Jake Stone and Texas cowboy Shane Houston find the mythical Tomb of Heaven before the legendary Elixir of Life falls into the wrong hands? Or is the destiny of humankind about to change forever?