Helen Macinnes.: Horizon.

MacInnes takes us inside a WW2 Italian prison camp, into the life of an American prisoner, an artist with badly injured hands. He is hurting, physically and emotionally, from his wounds, but still fighting as best he can, plotting an escape. When he ends up in the mountains of the Tyrol (doesn't MacInnes always take us back to the Tyrol!?), he finds people who are trying to fight the Totalitarians with not much more than courage and a knowledge of truth and their local terrain. As is typical of a MacInnes novel, she shows people fighting for Truth and Freedom against a Totalitarian system. Her protagonists may be up against Facists or Nazis (in this book, both) or Anarchists, or most often Communists, but they always fight for Freedom, for principles over personal convenience. It's as political as any of her novels, but also just as beautifully crafted. Read it for the politics, or read it for the literary value. But read it.