An astounding spy thriller by the master
This thriller novel kicks off with Dr. Carpenter, a British medical doctor, who gets orders to board the USS Dolphin in the UK. The US nuclear submarine Dolphin has a near-impossible mission: it has to cruise underneath the ice pack of the Arctic to find and save the inhabitants of Ice Station Zebra, a scientific meteorological station drifting with the ice pack somewhere north of the Arctic Circle. Ice Station Zebra was destroyed by a fire, but little does anyone know that fire at Ice Station Zebra was due to sabotage, and that one of the survivors is a ruthless killer. Furthermore, Dr. Carpenter is not what he seems to be and it later becomes evident that he has more staked in this cruise than originally suggested.