"I have another question." Sun Hang watched Noor clumsily peel open the foil wrapper of a compressed biscuit. "How do hunters like you find your way across the Sand Sea?"
Given the Sand Sea Remnants' level of technology, they most likely had none of those precision positioning instruments. Even if they had found relics from the old civilization, those things might not have been of any use—more than half of the cutting-edge equipment brought by the advance team had failed to function in the fallen zone, let alone antiques from a century ago.
"With this." Noor raised his arm.
Sun Hang saw a scar on the inside of his right arm, resembling a burn mark.
"What is that?"
"The Hunter's Mark. Before every hunter sets out, the priest brands a Hunter's Mark onto us. Before it fades, as long as we get close to the Mother Seal in the priest's possession, we feel a burning pain. The more intense the pain, the closer we are to home... It can also sense the messengers of the underworld. When a messenger approaches, the pain turns into a tingling itch. But when that sensation grows strong enough to numb the entire arm, it means they're already within dangerous range. We have to get away immediately..." Noor rambled as he explained.
Sun Hang studied the scar closely. Judging by its shape, it seemed to have been branded on with some kind of red-hot iron. But Noor's scar had mostly healed by now, its surface covered in raised scar tissue, making it impossible for Sun Hang to make out the mark's original design.
According to Noor, the mark's special effect would disappear once the scar healed completely. Sun Hang could not sense any memetic aura from it, but that did not mean it definitely was