The White Darkness by by Geraldine McCaughrean

This is challenging reading--you have to really be ready for visualizing the action and setting. The main character, Sym, gets "kidnapped" by her "uncle" and and dragged off to Antarctica. Much of the book is the gradual psychological exploration of how Sym got to this place both physically and emotionally. It is also a pretty good review of the psychology behind some of the explorers and adventurers. I had read "Into Thin Air" a while ago by John Krakauer. It's about climbers dying on Mt. Everest (he was almost one of them). The idea of what makes people pursue extreme sports is one I like to explore sometimes.