[s1e23] A Haunting In Crystal Cove Instant

: The "poltergeist" is revealed to be Professor Pericles . He targeted the Mayor to reclaim a piece of the Planispheric Disc that the Mayor had stolen from him years ago. Key Highlights & Trivia

: The episode contains numerous visual and thematic homages to the 1982 film Poltergeist , including the "evil pizza" and items flying around a vortex.

: Vincent Van Ghoul makes a brief appearance as an announcer. Where to Watch You can find this episode on various platforms:

: The episode is a turning point for the season's main plot, revealing that Mayor Jones has a hidden piece of the Planispheric Disc and a dark history with Professor Pericles.

: While Shaggy and Scooby provide a "security detail" (mostly hiding), Fred discovers that his own elaborate house-wide traps have been hacked and weaponized against his father.

: At the Spook Museum, the gang meets a new barista named Lady Marmalade , who claims to be a voodoo priestess and suggests the Mayor needs an exorcism.

: This episode features Fred’s vow to give up mystery solving forever if he fails, adding high personal stakes to the case.

"Scooby-Doo! Mystery Incorporated" A Haunting in Crystal Cove (TV Episode 2011) - IMDb