A Skyrim KnightEdit
Outside Earthtear Caverns is a female knight named Tanyin Aldwyr. She will tell you that she was meant to be meeting some friends in Earthtear Caverns, but has found them overrun with Vermin. She is looking for a map, which she believes may be hidden in the caverns, and will pay you to retrieve it.
Finding the MapEdit
The map is in the east section of the caverns. Once you have crossed over the bridge follow the corridor south and then west to find a chest, which has the map inside it.
Handing in the mapEdit
Tanyin Aldwyr will pay you for the map, compliment your bravery and say she is leaving for Dragonstar via Snowline, where you may meet again.