A luxury cruise ship slams into something impossible beneath the crystal-clear waters of the Mediterranean.

The impact rips open its hull. With the ship flooding fast, the captain makes a desperate call – beach her off the Italian coast.

The decision saves every life on board.

It costs him the ship.

Now the wreck lies half-submerged in the electric-blue shallows off the island of Capri.

The U.S. Secretary of Defense sends the only man she can trust to recover an object so dangerous it was being transported in absolute secrecy.

But when the man descends into the flooded corridors, he realizes he’s not alone.

Other nations have deployed their own operatives.

All of them are hunting the same prize.

And if Sam Reilly fails, the Eye of Horus will decide the fate of the world...