You traveled in a direction far from any signs of life, when you found that your horse went from running on grassy roads, to running on sand as if it was some kind of mule. The heat was getting through your own armor, as you galloped across the sand, but didn't know any signs of life other than just hills of the sand you were riding across.
Of course, you managed to find a bunch of springs, but they were being occupied by myth's. You were too weak from heatstroke to deal with any enemies at the time, so you decided to just sit down, and relax next to your horse after you get off of it. What you didn't think you would prepare for was the sand tornado as it drew close to you, while your horse escaped, and ran off. You try, and get up to run as well, but you began to pass out, as a ton of sand covered your entire body, burying you alive.