Here's a breakdown of the conflict:
* The Mystery: The Knight is kidnapping people and leaving behind clues in the form of riddles.
* The Suspects: The gang suspects various characters, including the park's owner, a magician, and a knight impersonator.
* The Real Villain: The true culprit is revealed to be the park owner's brother, who was trying to sabotage the park due to jealousy.
The conflict is resolved when Scooby and Shaggy solve the riddles and expose the true culprit, leading to the "Knight of the Frightening Face" being unmasked and the park being saved.