After collecting all these items, Sean Knight didn't bother with the silver ingots scattered on the ground; he quickly crawled out of the hole, then released the sand to bury any traces behind.
There were still many sand dunes in the surrounding area, but no other dune contained similar items—they were all genuine sand dunes, albeit artificially moved as well.
Seeing nothing else, Sean Knight immediately took out the car and drove toward the boundary.
After driving for dozens of kilometers, Sean Knight saw lights ahead. He had been driving in the dark, so when he spotted activity, he immediately turned off the car's engine, retracted the car, and slowly made his way over there.
After walking more than one kilometer, he encountered numerous cars—on this side of the borderline, there were occasional gunshots.
Sean Knight guessed that they were probably capturing people trying to illegally cross the border.
This was not a way through; he needed to find another place.