Menace of the Manticore

Plot
The beginning of the episode shows Angel Dynamite a.k.a. Cassidy Williams entering the original Mystery Incorporated's hideout located in the Destroido sewer pipes. She has a conversation with Mr. E. Meanwhile, Mayor Jones asks for help about a manticore attacking tourists at a haunted-themed amusement park. The gang investigates, and while they are doing this, it is revealed again that Mayor Jones is looking for the planispheric disk piece. While '''he is doing this, the gang catches the manticore. At the end of the episode, Angel has another conversation with Mr. E, and reveals that she put a bug on Velma and learns that Shaggy and Scooby have the piece. Mr. E tells her that he will get Shaggy to trick Scooby and give him the piece. At the very end, Mr. E is revealed to be Ricky Owens from the original Mystery Incorporated.'''