With Rhona Fraser. From the east through Coire Dubh Mòr, then Loch Coire na Caime before climbing steeply up scree, boulders and grass to reach a point between the first and second of the Northern Pinnacles. Went over the first pinnacle and up to the summit of Meall Dearg and back and then climbed the rest of the Northern Pinnacles. We did not have a rope. We chose the left of two parallel steep gullies and had some difficulty half way up. A swing up and left made on a good handhold that was not immediately obvious. Later I found a way up very steep and exposed rock blocks. There were good holds with a mantelshelf to finish. We tackled the fourth pinnacle by moving right on a terrace for about 10m before climbing up on easier angled rock. Up the fifth pinnacle and on to the summit of Mullach an Rathain. We descended the west ridge of Mullach an Rathain which is delightful high up but the lower parts are very tedious with much vegetation and many holes.