I had made a mistake.  For some bizarre reason, I had thought that there was one more day of walking on the West Highland Way until we returned home. If we hadn't noticed the error we might have arrived in Fort William and found ourselves without a roof over our heads for the next evening. Fortunately, some weeks earlier  Jerome spotted the gaping hole between the date of completing the walk and our flight home, and we decided to spend one last full day in Fort William. What to do on this day was a matter of debate. Jerome and Chris both favoured walking up Ben Nevis. I was less keen, mainly because I had climbed it back in 1974 on a dry but dull day. Back then I was enthused because the top of Ben Nevis was in the clouds and I thought it would be exciting to walk through them. What I failed to realise was that I had walked through clouds many times before - when it's foggy. And I can reveal that Ben Nevis in the fog is just a slog. I was prepared to walk it again if that w