Scooby-Doo! and the Pokémon Mystery/Transcript

Jaykoko appeared
Jaykoko: The curse of Jaykoko is upon you! End this tourament or suffer!

Ash Ketchum: What?

Serena disappearance
Shaggy Rogers: Hey, where's Serena?

Bonnie: She's gone.

Misty: Jaykoko must have got her.

Hooded Figure guides Professor Oak, Ash, Shaggy and Scooby
Professor Oak: Who are you?

Hooded Figure: A Friend. I can offer you some guidence to Serena, Professor Oak if i mean if, you do something to me.

Professor Oak:  What do you need?

Hooded Figure: The Key to the Twin's Cell. Give it to "him" when he arrives from Rome.

Professor Oak: Fine. You got yourself a deal. Lead the way.

(The hooded figure guides Professor Oak, Ash, Shaggy and Scooby to a room where they sees Serena gaged up in a bathroom.)

Rescue Serena
Ash Ketchum: What happened, Serena?

Serena: Well while while you guys are battling Team Rocket, I just had to go to the bathroom to wash my face until that monster captured me.

Unmasked Jaykoko
Fred Jones: Time to see who this really is.

(He unmasked Jaykoko, revealing to be Miette)

Everyone: Miette?!

Serena: What? Why Miette?

Miette: It's because of you! You always have a perfect journey, be with Ash and got the Master Keys! But Once i've found out about a brother you never know, I accused you of my master plan and cause you guys to solve the impossible mystery!

Serena:  Hold on! I have a brother?

Miette: Yes, Didn't Professor Oak, Ash and Your mom told you?

Serena: No. What's he looks like?

Miette: Well he has blue hair, a blue eye on the left and the other eye is purple, has a leather jacket and wears a diamond pendant.

Daphne: Wait, did you say a diamond pendant?

Miette: Yeah. You know who he is?

Daphne: Yeah. It's Lorcan!

Ending
Scooby-Doo: SCOOBY DOOBY DOO!!!!

Pikachu: Pika pikachu!