Another response comes shortly after, within only a few days at most.
Tralek,
Many of the marks led to random places. A cluster of marks seemed to lead to that same cavern I described before before my senses were diverted elsewhere. One mark, which seemed to be the most recent, ended in the Wandering Dunes. It was a familiar location, as it is at the edge of that great chasm that runs through it.
We did not see any sign of this girl you mentioned, or anything ghostly for that matter.
Regards,
Connor