Erik Weihenmayer is one of the world's foremost mountaineers. He also happens to be blind. That didn't stop him from summiting the world's tallest peak, Mt. Everest, with the help of the Vail Valley's Eric Alexander and a host of others. But amid all that success, sometimes the best stories begin with those almost-successes, like their second assault on La Pomme d'Or — The Golden Apple, a spectacular 1,200-foot ice face along Quebec's Rivière Malbaie…