Down to a Sunless Sea

"Welcome to the most dangerous sport on earth: where cave divers step into murky Florida ponds and end up hundreds of feet below the ground, threading through the narrow passages of Swiss-cheese-like rock formations, heading down tunnels that may open into caverns of breathtaking beauty, or else suddenly collapse in rockfalls that crush out their air and their lives. Open-water diver and ex-con Tiller Galloway has come to this watery underworld to find out why an old friend died young and take one last shot at being a father, a lover, and a friend. But with a woman opening up her heart, and a deadly conspiracy closing in around him, Galloway must navigate between lies told aboveground and truths hidden in the depths."--