Related Clues:
- A light pulse having ingested carbon monoxide
- Signal-fire
- fire lit as a signal
- Watch fire
- Watch fire in half of Bucks town
- In the tube a constant light
- Light opening to exhibition held by artist
- A trick? Be first to give a signal
- Very light head inhaling carbon monoxide
- Warning from company employed by head
- Experience life in prison -- that can be a warning
- Serve inside presumably as a shining light
- Warning or guiding device
- Highlight of historic communication
- Exist as a prisoner, a guiding light