That night, a little before midnight, we started with lanterns, picking our way first through the small rhododendron bushes by the side of the glacier for about a mile, then turning to the right obliquely up the hill-side with the intention of reaching a rock rib which led up to a gap in the great wall that bounded the Diamirai nullah on the south side. For a long time we stumbled up what seemed an interminable shoot of loose stones, but by the time the early dawn gave sufficient light to enable us to see where we were, a rock arête came into view on our left.[H] Towards this we made our way, finding the climbing was by no means difficult. Occasionally the arête would become too perpendicular for us to follow it, and then we had to cut steps along the top of ice- or snow-slopes that were underneath the rocks on the top of the ridge and chance finding our way back up some gully or subsidiary rib of rocks that might branch out from the main arête.
We did not seem to waste much time, but long after the sun had risen and the silent ranges of blue mountains had flushed first with the rosy tints of the rising sun and afterwards glistened with the full blaze of the morning, the pass was still far away above us. These Himalaya are constructed on a totally different scale from either the Alps or any of the ordinary snow mountains. Still, point after point had to be surmounted. Once in the mist that settled down on us about eleven o'clock, we at last thought the summit was reached, and began to descend an arête that led towards the south. Twenty minutes later, when it cleared, great was our vexation to find the pass still a long distance above us on our right, and that we had unconsciously been descending towards the Diamirai nullah. Upwards again we had to climb, finally finding that the ridge led to the top of a peak on the west of the pass and about a thousand feet higher. In order to save the extra fatigue of climbing to the summit and again descending to the pass, Mummery made a bold effort, striking across the face of the mountain. In some places rocks stuck out from the steep face, in others ice slopes had to be crossed, and towards the middle a great circle of soft snow, with steep ice underneath, gave us an anxious time; for should the surface snow have avalanched away, it would not have stopped for certainly several thousand feet. By tying two ropes (eighty and sixty feet long) together, we spread ourselves out as far apart as possible, and very carefully made our way across. It was two in the afternoon before the summit of the pass was reached; its height was 18,050 feet. We have named it the Diamirai pass. Mummery assured us that he had never been over a more sporting pass, and we were delighted with the varied climbing that we had experienced. But our enthusiasm was soon checked; below, on the further side, we could see neither the wished-for Rupal nullah nor the Mazeno La. Easy rocks and snow led down to a small glacier, which, flowing southwards, led into another and larger glacier whose trend was to the west. Evidently the larger glacier was the Lubar. The position we were in gradually began to dawn on us. In fourteen hours we had made, as the crow flies, three miles; of course we had climbed about six thousand feet, but in front of us lay a descent of three thousand feet, and on to the wrong side of the range, therefore at least five miles away round the corner on the left was the Mazeno La, 18,000 feet. We also knew that our camp, and probably our first food, was nearly twenty miles on the other side of the Mazeno, and to make matters worse we had only a few scraps left, a slice of meat, some sticks of chocolate, and about half a dozen biscuits. There was no time to admire the view, also not much view to admire, for the customary midday mists completely hid Nanga Parbat and all the higher peaks. As an heroic effort Mummery suggested that it might save time to climb up from the pass on the south side, over a peak nearly 21,000 feet, in order to drop down on to the Mazeno La; but we soon decided that it was imprudent so late in the day to attempt it, especially as it would most certainly involve spending the night out at some very high altitude. We therefore rapidly descended the easy slopes on the south side of this pass, to which, as I have said, we gave the name of Diamirai. After running down the foot glacier, the Lubar glacier was reached at about half-past five. Here we stopped and rested for about an hour and a half, vainly attempting to get away from a bitterly cold wind that was blowing up from the west. But there was no shelter, so the lesser of two evils was chosen, namely to go on.