Book excerpt: After the thrilling exploits in Matthew Reilly's action-packed New York Times bestseller, Seven Deadly Wonders, supersoldier Jack West Jr. and his loyal team of adventurers are back, and now they face an all-but-impossible challenge. A mysterious ceremony in an unknown location has unraveled their work and triggered a catastrophic countdown that will climax in no less than the end of all life on Earth. But there is one last hope. If Jack and his team can find and rebuild a legendary ancient device known only as the "Machine," they might be able to ward off the coming armageddon. The only clues to locating this Machine, however, are held within the fabled Six Sacred Stones, long lost in the fog of history. And so the hunt begins for the Six Sacred Stones and the all-important knowledge they possess, but in the course of this wild adventure Jack and his team will discover that they are not the only ones seeking the Stones and that there might just be other players out there who don't want to see the world saved at all. From Stonehenge in England to the deserts of Egypt to the spectacular Three Gorges region of China, The Six Sacred Stones will take you on a nonstop roller-coaster ride through ancient history, modern military hardware, and some of the fastest and most mind-blowing action you will ever read.