Instructions
Explore Harmondale to find all available armor and spells. Stock up on five or so days worth of food.
Head to the southern border of Harmondale, which leads to the Barrow Downs. Make your way to a few buildings located in the northern part of the Barrow Downs.
Head west from the buildings until you cross a bridge, then climb the hill to the southwest. Defeat any specters or shades patrolling the area that you run into.
Look for the bridge that heads southeast when you get to the peak of the hill.
Cross the bridge at the peak of the hill. You will see Stone City off in the distance ahead of you.