The Song of Mystery

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The Song of Mystery
Scooby-Doo! Mystery Incorporated
US Air date August 9, 2010
Written by Paul Rugg
Directed by Curt Geda
Previous episode

Revenge Of The Man Crab

Next episode

The Legend Of Alice May

The Song Of Mystery is the fifth episode of the first season of Scooby-Doo! Mystery Incorporated.


Kids are being spookafied by the flute-playing Que Horrifico.


The children of Crystal Cove are being turned into monsters by a creature named Que Horrifico scaring all of the adults in town. As a result, they abandon their children who are being quarantined by the town and run for their lives. Fred and the gang try to solve the mystery, but get arrested.

Scooby and Shaggy are eating. Velma appears, saying that Shaggy should stop saying "like" and start wearing new pants. Meanwhile, Fred is getting tutored by an intelligent kid named Mary Anne Gleardan, who claims she should be in college. The tutor says she wants to join the city council, but is too "young."

Then the gang go to a vacant house on the street Que Horrifico mostly appears. Scooby and the gang disguise themselves as a family, thinking Que Horrifico would show up to turn Shaggy and Scooby, disguised as children, into one of her kid-minions. Que Horrifico then showed up to get Shaggy and Scooby, but gets caught in one of Fred's traps. Unfortunately, Que Horrifico calls its kid-minions to help the monster out of the trap, and the minions start chasing the gang around the vacant house. When Fred, Daphne, and Velma are cornered by the kid-minions next to the TV, Velma accidentally presses the remote, causing the TV to open. The kid-minions then start to sit down, and take off their masks. The kid-minions turn out to be the kids, with masks, fake hair, and fake fangs. Que Horrifico, hanging out of the window, says "What are you doing? You're ruining everything!", and then jumps out, after Fred and the gang start to chase it. Que Horrifico then gets trapped in one of Fred's nets and Sheriff Stone and the Mayor find the gang and a trapped Que Horrifico. Que Horrifico then turns out to be Mary Anne Gleardan, and she says her plan was to get rid of all the parents in Crystal Cove, so there would be no one in her way for ruling the town. Sheriff Stone arrests Mary Ann (even though she's a kid) while ranting to her about the Que Horrifico merchandises that Crystal Cove made because of her plot.

Later that night at the radio station, as Angel Dynamite rewards the gang with pizza, Shaggy tells Velma that he prefers his own baggy pants to the ones that Velma bought him.

Cast and characters

Actor Character
Frank Welker Scooby-Doo
Fred Jones, Jr.
Matthew Lillard Shaggy Rogers
Grey DeLisle Daphne Blake
Tiffany's mother
Que Horrifico
Mindy Cohn Velma Dinkley
Gary Cole Mayor Fred Jones, Sr.
Patrick Warburton Sheriff Bronson Stone
Vivica A. Fox Angel Dynamite
Frances Conroy Angie Dinkley
Isabella Acres Mary Anne Gleardan
Child #4
Child #5
Zach Callison Arthur Baywosenthal
Child #6
Child #7
Tony Cervone Gary
Tom Kenny Broccoli Head
Mr. Baywosenthal
Stripe kid
Child #8
Paul Rugg Dr. Luis de Potrillo
Male parent #1
Will Shadley Child #1
Child #2
Child #3
Kath Soucie Female parent #1
Female parent #2
Mitch Watson Ethan
Male Parent #2
Mr. Gabodoglophordia
Non-speaking roles
Mrs. Baywosenthal


  • Que Horrifico/Mary Anne Gleardan
  • Spookafied kids/children (redeemed)


Suspect Motive/reason
Dr. Luis de Potrillo He thought he might be Que Horrifico.


Culprit Motive/reason
Mary Anne Gleardan as Que Horrifico To take over the town.
Children Conspired to put on masks with the promise of candy.



  • Although failing in the previous episode to get Shaggy to eat healthy, Velma moves onto trying to stop him incorrectly using the word "like" in almost every sentence and getting him to wear a new type of pants (both of which are recurring gags). By the end of the episode he tells her to stop because he likes the way he is and she accepts.


  • UK premiere date: 28th October, 2010.
  • Velma says that Shaggy has worn his trademark red pants since the eigth grade.
  • Running gags: Shaggy having trouble walking in his new pants; and having to snap himself with a rubber band whenever he says "Like."
  • The scene where Shaggy is pulled back into the darkness by spookified children in a reference to the Spanish horror film [REC] and/or its American remake Quarantine.
  • The scene where Shaggy and Scooby tie themselves into the panel closet with an ascot is a reference to Halloween in which Laurie Strode tied a scarf around a similar closet door in order to hide from Michael Myers. When the spookified children bust through the panels, it is reminiscent of when Michael thrust his hand through the panels to try and get Laurie.

Animation mistakes and/or technical glitches

  • None known.

Inconstitencies/continuity errors and/or goofs/oddities

  • When the gang drove through Crystal Cove during the fire, Shaggy said "Like" again, as in response to Velma, "Yeah! Like the whole town is spookified", no rubber band is heard snapping.
    • Possibly Velma was too horrified by what she saw to enforce the rule.
    • Or possibly because, though Shaggy's sentence was grammatically incorrect, the "like" part wasn't the problem. "Like" was actually used correctly. Had Shaggy said "It's like the whole town is spookified," the sentence would have been grammatically correct.

In other languages

Language Name Meaning
Spanish (Latin America) La Canción Misteriosa The Mysterious Song
Spanish (Spain) La Canción del Misterio The Song of Mystery
Italian La Canzone del Mistero
French La Chanson du Mystère
Portuguese A Música de Mistério The Music of Mystery
Hungarian A Rejtélyes Dallam The Mysterious Melody
Greek Το Μυστηριώδες Τραγούδι The Mysterious Song

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