LISE
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This was huge! She just had to measure the area from which the possible next mark could be. From there, she would probably be able to ascertain which tunnel the expedition had taken to continue their journey.
The hopeful teen straightened her back as she eyed the potential spots where the next mark could be. "I just have to find it. Huh, Brother..."
The cavern was impossibly large, but with the information she just uncovered, it was only a matter of time before she finally found her missing brother. Measuring the number of paces there were between each mark, Lise mentally drew up an area around the mark where she could begin searching. It was a circle around her first torch, some kind of circumference, as her brother would put it.