Related Clues:

• What methane's missing
• Trail for the dogs
• It may be masked
• Cafe lure
• Characteristic smell
• It's missing from carbon monoxide
• It's around the dumpster
• What wavy lines signify in the comics
• Sole problem?
• Bad smell
• Appetite arouser
• Dump emanation
• Coffeehouse lure
• Perfume allure
• Cinnamon bun feature