Related Clues:

• Etna ejecta
• Parabolic path
• Soap containing pumice
• Ball's path
• Cotopaxi outflow
• Rocket's path, maybe
• Curved segment
• Igneous-rock source
• Volcano's outflow
• Electrical gap filler
• Thrown object's path
• It's a matter of degrees
• Path of a pass
• Leucite source
• Story-line progression