- Fred: Uh, Shaggy, we have a visitor.
- Shaggy: Then, like, why is nobody saying hello?
- [he and Scooby turn and around to see the beautiful banshee and run behind Velma and Madelyn]
- Velma Dinkley: [sarcasticly] Uh-huh. Bravest of heroes.
- Daphne: So, that's the banshee? She doesn't look scary.
- Fred: [dazed] Yeah, she kinda looks pretty.
- [the banshee suddenly screams and morphs into a hag]
- Shaggy: [to gryphon] I totally command you by the powers of Houdini, the Wizard of Oz and, um, the English kid with the glasses, to put us down!
- Madelyn Dinkley: [upon finding O'Flannery's tomb] That must be O'Flannery's staff!
- Shaggy: [about O'Flannery's skeleton] And that must be O'Flannery!
- The G.P.S.: [post-credits scene] You kids are still watching? Well, the mystery's over! Now move on with your lives! Hahahahaha...
- [cough]
- The G.P.S.: I need oil.
- Velma Dinkley: It's great to see Mads again, but we don't seem to have that much in common. Just between you and me, she's kind of a nerd.
- Daphne: No kidding.
- Velma Dinkley: Once she gloms onto something, there's no stopping her. She's always overanalyzing every little thing that attracts her attention.
- [notices something]
- Velma Dinkley: There's some gritty residue on the floor. Could be a clue.
- Daphne: It's rosin. Dancers put it on their shoes.
- Velma Dinkley: I knew that.
- Daphne: [sarcastic] Yeah, you and your sister are like night and day.
- Shaggy: I thought you said the griffin was a myth.
- Madelyn Dinkley: I didn't want the others to be frightened. I'm telling you because you're brave.
- Scooby-Doo: Brave? Shaggy? Brave?
- [laughs]