Scooby-Doo! and You: The Case of the Theater Phantom

'Scooby-Doo! and You: The Case of the Theater Phantom' is a children's book in the Scooby-Doo! and You: A Collect the Clues Mystery series published by Scholastic.

Premise
A Theater Phantom is scaring people away from a theater.

Characters

 * Scooby-Doo
 * Thomas Smithson