"Yeah, and do you see me trying to enslave a dog? Imprisoning it in a little box somewhere, without any interaction with the outside world?"

...Cerberus sighs. "No, but it's different. Look, I've been in that book for a hundred years and you don't see me complaining, do you? It's different."

"... Did you not volunteer for the job? Did the magic guy just enslave you, too? Surely there was a better option than imprisoning a bunch of cards with personalities and then enslaving a magical creature to keep guard."

"No, he made me! Keeping guard is what I'm for!" He stands up again and starts pacing, which is quite a comical sight. "I don't know how to explain this," he says, scratching his head. Pause. "I know!" he says, turning to look at Theo and pointing at him. "You will talk to Windy."

"They can talk? How exactly does that make them like dogs!?" he shouts, probably a bit loudly.

"You'll see what I mean!"

"Ugh! Fine," he growls. "How do I talk to Windy?"

"Stand over there!" he says, pointing at an empty spot in the middle of the floor.

He walks over there, mostly keeping his eyes on Cerberus.

"Now wait!"

...and after a few seconds, Cerberus starts glowing around the edges, eyes closed. Waiting.

Theo keeps looking on suspiciously, but doesn't seem too startled; if magic looks a bit magical, it's not exactly the most surprising thing in the world.

Then something in the distance... a falling star?

...that's approaching pretty fast. Before Theo can react, a glowing point of light has entered his room through his window and is floating in front of him. As it stops glowing, it's recognisable as... a rather peculiar key.

"What's your name?" Cerberus asks.

"What, me? Or does this key also have a personality? Perhaps you're asking it," he says sarcastically.

"This is no time for jokes! Yes, you!"

"Theo."

Cerberus nods, then starts intoning. "Key of the Seal, there is someone wishing for a contract with you."

Theo waves.

"A boy! His name is Theo. Oh, Key, grant him the power. RELEASE!"

Suddenly, Theo's room disappears. He's standing in a void, the only things present being himself, Cerberus, the Key, and a glowing circle much like the one on the back of the Clow Cards where the "ground" should be. A strong wind starts pressing against Theo as the Key starts glowing again, almost too bright to look at.

Okay, no, this is a little more extreme than glowing. He stumbles a little, then looks around a bit, trying not to fall over.

The Key grows and changes shape, becoming a staff.

"Now, Theo! Grab it!"

The wind is stronger, coming from the magical floating staff in the middle of the circle, working against Theo's attempt at doing it.

He struggles against the wind, which is seemingly getting stronger as he gets closer, then reaches for the staff, eventually seizing hold of it.

The wind stops, the glowing circle disappears, and they're back in his room. "That's it! The birth of a Cardcaptor!"

"What happened to talking to Windy?"

"Yes!" He points at the card. "You must will it then ask it to manifest before you. You throw it in front of you, and then you touch it with the point of your staff," he says, pointing at the "beak" of the staff, "and you call its name."

"What the hell's a Cardcaptor? Does it have any side effects?" he says, looking angry. "And what's gonna happen if I call upon Windy how you said? Perhaps there'll be a hurricane that you forgot to mention?"