Ice Station (Shane Schofield, #1)

Antarctica is the last unconquered continent, a murderous expanse of howling winds, blinding whiteouts and deadly crevasses. On one edge of Antarctica is Wilkes Station. Beneath Wilkes Station is the gate to hell itself...A team of U.S. divers, exploring three thousand feet beneath the ice shelf has vanished. Sending out an SOS, Wilkes draws a rapid deployment team of Marines-and someone else...First comes a horrific firefight. Then comes a plunge into a drowning pool filled with killer whales. Next comes the hard part, as a handful of survivors begin an electrifying, red-hot, non-stop battle of survival across the continent and against wave after wave of elite military assassins-who've all come for one thing: a secret buried deep beneath the ice...