Dark Ice — Tom Grace

A remote NASA research lab rests atop a two-mile thick glacier. Under the glacier is a hidden underground lake.
And inside the frozen lake is a secret.
When someone murders the scientists stationed at the lab, ex-Navy SEAL Nolan Kilkenny realizes that the strange life inside the undergound lake holds answers to questions about human existence and evolution -- answers worth killing for.
"[Dark Ice] displays Grace's mastery of action and technology...if you like techno-thrillers that move at a break-neck speed…no one concocts them better than Tom Grace." -- Michigan Today