Darius was strolling around the forest, aimlessly looking around, when suddenly his runic amulet began to make a barely audible humming sound.
"Hmm?" he looked at the necklace, and a grin appeared on his face. "Well, it seems that today is my lucky day!".
He looked around for something before heading southwest. With each step, the humming sound was getting progressively louder and louder to the point of being quite noisy. When that happened, Darius stopped. He was in a small glade in the middle of a densely forested area. There, he could see a rectangle-shaped stone slab covered in foliage that was engraved with symbols that were identical to those of the amulet, and had a triangular groove in the middle of it.
"Bingo." Darius muttered, content with his finding.
He crouched in front of the old slab and began to remove any branches or leaves covering it. When he was done, he took his amulet and placed it in the groove; it fitted perfectly. The moment he removed his hand from it and took a step back, the stone suddenly made a cracking noise, and slowly started to move to the side, revealing a stairway going down, into the darkness. When the entrance has been revealed completely, Darius picked up his necklace back and took a quick look around for any unwanted attention before starting his descent into the darkness.