Tar Monster (The Case of the Greedy Tar)

The Tar Monster was the disguise of the museum curator.

Physical appearance
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Personality
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Scooby-Doo (DC Comics)
Insert details here. (The Case of the Greedy Tar)

Appearances

 * Scooby-Doo (DC Comics)
 * #49(a). The Case of the Greedy Tar