Related Clues:
- Cookout residue
- Aerostatics subject
- What comes from the bottom of my hearth
- Some are noble
- They're in the atmosphere
- Grate fill
- Inferno residue
- Remains to be seen?
- Krypton and oxygen, e.g.
- Evidence of arson
- Exhausts, say
- Neon and hydrogen
- Tennis great Arthur and family
- Fireplace stuff
- Remains on the hearth