December 1972.

The Cold War has reached the top of the world.

When the American submarine USS Scorpion vanishes beneath the Arctic ice, Washington launches a mission so secret it has no official record. Major Jack Rourke is recalled from retirement and ordered to lead Task Force Sentinel into the frozen wilderness to recover the vessel before Soviet forces can reach it.

The mission appears straightforward.

It isn't.

Signals from the missing submarine show evidence of deliberate manipulation. Intelligence reports don't align. Arctic survival equipment has been tampered with before deployment. And somewhere beyond the ice, a legendary Soviet operative named Sergei Volkov is already waiting.

As American and Soviet teams navigate shifting ice fields, brutal storms, and the crushing darkness of the polar winter, the search for the submarine uncovers something far more dangerous than either side expected.

Now Rourke and his team must survive an environment designed to kill them while uncovering a conspiracy hidden beneath the Arctic Ocean.

In the frozen silence of the far north, the greatest threat isn't the enemy.

It's the secret buried beneath the ice.

Perfect for readers who enjoy: • Cold War thrillers • Military action and special operations • Submarine and naval warfare • Espionage and intelligence operations • Arctic survival adventures • Tom Clancy-style techno-thrillers • International conspiracy thrillers • Historical military fiction