Sinkhole

Kat Delaney is a world class caver and microbiologist. While investigating one of the deepest caves on Earth, she becomes trapped, along with her team of fellow cavers and scientists. Far below the ruins of a Mayan city, they struggle to escape this mysterious cave, reportedly cursed and haunted by the Lords of Death. Kat’s husband, Mark, a doctor and pioneer of nanotechnology with a deep-rooted fear of caves, must try to rescue her. He enlists the help of a Mayan guide, who turns out to have revolutionary ambitions.

Kat must keep her unravelling team together when they discover that something as threatening as the Lords of Death lurks within the cave. Mark must choose between trusting a guide who is patently untrustworthy, or leaving Kat to die. Will they escape? Will science be the solution? Or will it simply affirm their sentence as the Lords of Death win once again?