Our camera slides in from above, into a grassy plain. In the center of the frame, a hole into the ground. We fly into this tunnel, down a way into the earth while winding slightly, and into frame comes a pile of hair. It awakes and yawns, stretching in a way to reveal it is human female.
She flicks on a nearby lantern, illuminating the small room she slept in along with the engraved ring on her finger. The walls are covered in little tick-marks, evenly spaced around two-thirds of the walls. She gets up, extracting herself from her backpack she had flopped onto to sleep, then walks over and aligns herself to where the next mark would go. Peering at the wall, a sigh, obviously not finding what she was looking for yet. She scratches another tick mark with a small chisel, and then realigns to the next space. She peers again, eyes unblinking.
Then, a smile starts on her face. A squiggle is drawn in the space. More gazing, more marking, until a small outline of a shape sits on the wall, some sort of structure. Her smile grows larger by the minute.
A sudden shout of joy. She throws the chisel over her shoulder onto the backpack she was using as a pillow, grabs the lantern. then races off down a side tunnel. With motions of her hands she moves the earth out of the way and packs it into the walls, extending the tunnel as she crawls down it. The path heads on, winding around nearby paths, then heads straight in the direction the drawing was pointing towards.