If you walk 90 miles west of Dunhuang, into the depths of the Gobi Desert, you will find a watchtower. A sand-scarred remnant of the great Jade Gate. A desolate place. The end of the Silk Road, if you will.
In 1907, the intrepid explorer and cartographer Sir Aurel Stein came across this tower. Upon exploring the ruins, he discovered a cache of five letters in an unknown script