The 15th of August of the 1778 seven boys from Gressoney have climbed the Monte Rosa to search the lost valley, a golden age valley told in the legends of that periods. Before them the glaciers were touched only by hunters or pilgrims or, from a few years, by some scientist. They were the first to climb a mountain only for desire to do that: with them, it may be said, arose the alpinism. Their ascent to a new unexplored world resounds by the voices of the legends and belief whom go with them.