Mater looking at the Ghostlight.

The Ghostlight is the "antagonist" in Mater and the Ghostlight.

Mater and the Ghostlight

The Ghostlight is a glowing orb of blue, translucent light.

It haunts Radiator Springs, and hates nothing more than the sound of clanking metal (which is a sound often made by Mater's rickety shell).

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