Exactly twenty years ago, on the 28th of April, 2004, Patrick Berhault disappeared in the mountains, on a Swiss peak as part of a project of climbing the 82 summits of 4000 meters in the Alps. A gifted climber, he was also a very good mountaineer. An endearing personality, as gifted in solo as in friendship, Patrick Berhault was not only a virtuoso climber, but also a man with a style all about...