Running on empty

A long evening run from Drum to Inverness as part of my training for the Highland Cross. I am not capable of running all 17 miles but a combination of walking the climbs and jogging the flats gets the job done. This type of distance begins to have both a physical and mental impact. After around 12 miles all the stored energy in the body is gone and you keep going on a combination of whatever you  can eat and willpower. When you add the isolation - I did not see a soul in 17 miles - and a bitter east wind it adds up to self abuse. By the time I reach the canal side in Inverness I felt hollowed out. Still, it does show that it can be done....I wonder if I could take it up to 20.....