The Bone Labyrinth by James Rollins

A Sigma Force Novel

In a thrilling blend of science, history, and adventure, the story unfolds as a team of scientists and soldiers uncover a mysterious cave in Croatia, revealing ancient secrets that could alter the course of human evolution. As they delve deeper, they encounter a hidden laboratory and a series of genetic experiments that date back to the dawn of humanity. Racing against time and pursued by a shadowy organization, the protagonists must unravel a conspiracy that spans centuries, leading them on a global quest to protect a discovery that holds the key to mankind's future.