Related Clues:
- Shaft used as a mine entrance
- Almost horizontal shaft into a mine
- Looks like a well used part of a mine
- Using a key it follows there is an opening
- Arrow of sunlight?
- Burrow out of half-nelson, under barrel
- Opening financial analysis ignored union leader
- It may be sunk in a marsh afterwards
- Opening - using a key, it follows
- Opening into a mine
- A key, it is for opening
- Notice something opening
- Passage into mine
- Read about escaping with it by the passage
- Opening notice is just the thing