I can't believe I missed posting this one, by far and away the most gripping book I've read over these past few months. It reminds me very much of Ernest Shackleton's epic journey in the Antarctic, only this saga took place on the opposite end of the earth. I wouldn't even dream of spoiling your reading by saying any more; so I'll just share this:
"Winds were whipping up and it was getting very cold by early afternoon. Bartlett told everyone to hurry with the shelters. They should warm themselves by the big fire, try to dry their wet boots and clothing and otherwise keep moving. Bartlett surveyed the island and the surroundings, an empire of ice and stone."