I lost an hour in the dark, mainly trying to find a decent line up Sgriodain, which was in moon shadow, and Sgurr Eilde Mor, where I followed the direct line, but found the moor to the ridge soul destroying, with complex navigation, deep heather and false summits. The night was cold, with a blustery NW wind, and although there was a full moon, it was mainly in cloud. It was misty on Sgriodain and the awkward rocky knolls, but cleared for the descent off Chno Dearg. Beinn na Lap was cloud covered, and surprisingly hard to get off. I certainly missed the fastest lines.