We halted for 10 days at Leh. I had planned to stay longer, and should have liked to do so; but it was already becoming late in the season, the autumn is notoriously short in the Himalaya, and it was necessary as far as possible to avoid the first snows having blocked the passes of the Rupshu before we had got safely across. It is a question of three or four very high passes which are not very much used. For this reason, therefore, I am intending to start a few days earlier, and am giving up the idea which I had of making a short detour on the Rupshu plateau in order to see the blue surface of Morari Tso, which I once crossed in winter on the great sheet of ice which covered it.