Go into the cave

Perhaps it is the adventurer's blood in your veins, but you never could pass up the chance to explore somewhere new. Stepping carefully over the scattered bones, you creep into the dark passage. As your eyes adjust to the darkness, you realize that there is light, a faint, blue-green glow emanating from moss growing on the walls and ceiling. It's barely enough to see where you're going, but it is something.

After a short distance, the cave splits into two passages, one winding upwards and the other down.