Trick Or Treat Scooby-doo! Direct

Daphne noticed a small, high-tech tag left on the ground where the Ghost Diver had stood. "Look at this. It’s a specialized fiber... the same kind Coco Diablo uses for her high-end designs."

Fred was busy waxing the Mystery Machine, Daphne was perfecting her latest outfit, and Velma was deep into a book, occasionally sighing at the lack of a good puzzle. Meanwhile, Shaggy and Scooby-Doo were exactly where they wanted to be—safe in the kitchen, surrounded by a mountain of "Halloween snacks" that would make a buffet look like a light appetizer.

In the end, the warden was hauled away, and the gang managed to save Halloween for the kids of Coolsville. Shaggy and Scooby even got to keep the "evidence"—which, conveniently, was several crates of unclaimed chocolate. Trick or Treat Scooby-Doo!

Realizing they needed an expert on criminal costumes, the gang headed to the prison to interview Coco. To their surprise, Coco—who Velma couldn't help but admire for her brilliant, albeit villainous, mind—offered to help them, provided she could "consult" from outside her cell.

"Reah! No rhosts!" Scooby agreed, his tail wagging as he eyed a box of Scooby Snacks. Daphne noticed a small, high-tech tag left on

"Jinkies!" Velma exclaimed. "Those aren't just costumes. They look like... us?"

"But Coco is in the Coolsville Penitentiary," Velma noted, her brain already spinning with theories. "If these are her designs, who is wearing them? Or better yet, who is controlling them?" the same kind Coco Diablo uses for her high-end designs

It was Halloween night in Coolsville, but for the Mystery Inc. gang, the "spooky" atmosphere felt unusually quiet. After recently capturing the infamous costume designer Coco Diablo, the mastermind behind many of their old foes' disguises, the group was struggling with an unfamiliar problem: boredom.