Gravity.

Former CIA operative Alex Cave is the only man standing between humanity and extinction — if he survives the descent into the mountain that should have killed him. When a mysterious gravitational anomaly erupts deep inside an Icelandic tunnel, Alex and his friend Okawna discover a chamber shaped like an egg… and a device that can turn gravity on and off like a switch. But they're not alone. Treasure-hunter Sloan is determined to steal the technology — even if it means betraying everyone trapped inside the deadly tunnel. As gravity flips from crushing force to weightless freefall, Alex uncovers the truth: the device is ancient, alien-engineered, and part of a forgotten technology capable of moving planets. And on the far side of the solar system, a massive gold asteroid is already on a collision course with Earth. To stop it, Alex must take a stolen spaceship from Area 51 into space, risk an impossible landing, and anchor the gravity device to the asteroid before time runs out. But each second brings Earth closer to annihilation… and someone close to him won't make it back. Perfect for fans of James Rollins, Michael Crichton, A.G. Riddle, and Andy Weir, Gravity delivers heart-pounding action, breathtaking science, and high-stakes adventure from the first page to the explosive finale. If gravity turns against you… where can you run? The Alex Cave Series continues with its most explosive discovery yet, so grab your copy now! Feature movie script available from the author.