We had been actually travelling along the bridge of a crevasse, the sledge had stopped on it, whilst the dogs hung in their harness in the abyss, suspended between the sledge and the leading dog. Why the sledge and ourselves didn't follow the dogs we shall never know. I think a fraction of a pound of added weight must have taken us down. As soon as we grasped the position, we hauled the sledge clear of the bridge and anchored it. Then we peered into the depths of the crack. The dogs were howling dismally, suspended in all sorts of fantastic positions and evidently terribly frightened. Two had dropped out of their harness, and we could see them indistinctly on a snow bridge far below. The rope at either end of the chain had bitten deep into the snow at the side of the crevasse, and with the weight below, it was impossible to move it. By this time Wilson and Cherry-Garrard, who had seen the accident, had come to our assistance. At first things looked very bad for our poor team, and I saw little prospect of rescuing them. I had luckily inquired about the Alpine rope before starting the march, and now Cherry-Garrard hurriedly brought this most essential aid. It takes one a little time to make plans under such sudden circumstances, and for some minutes our efforts were rather futile. We could get not an inch on the main trace of the sledge or on the leading rope, which was binding Osman to the snow with a throttling pressure. Then thought became clearer. We unloaded our sledge, putting in safety our sleeping-bags with the tent and cooker. Choking sounds from Osman made it clear that the pressure on him must soon be relieved. I
