Stiles waits in the car.

He offers Kero some snacks. 

Kero accepts the snacks!

The Fly's fairly easy to operate, actually, obeying almost his thoughts more than anything.

Also he looks like a witch or something.

Yeah, magical girl and now witch. 

This is becoming a pattern.

He flies.

He doesn't catch up to the stranger. 

He ends up above a large residential neighborhood, with only a couple walking their dog. 

He hides, and flies back. 

"I found where he lives," he tells Stiles and Kero.

"Are you going there? I bet he was the reason those Clow Cards were disappearing!"

"I thought I should come back here, maybe have some kind of plan for if he's not friendly...Kero, how powerful did he seem?"

"He knew how to use sorcery and had access to cards... I'm not sure, it could be he was using someone else's spells or something. Clow was more powerful, though."

"Clow was the most powerful. We still might not be able to handle this guy."

"Kero, do you think I'm ready to face him now?" 

"Maybe. Depends on what cards he has. Cards are much more powerful than regular magic."

"We don't really have anything for a fight. Maybe I can catch him around town, so he's not prepared. Let's go home." 

They go home. 

Scott mediates with the new card. 

The new card is... pretty simple. Even simpler than The Move—it doesn't even have a mischievous streak. It's really just a big bird.

That's cool too. Birds are fine.

"Kero, if I use Windy, Through, or Move, could I get his cards away from him?"

"Not if he's written his names on the cards and befriended them. Then they're his and will come back to him."

"Okay. Our best bet is to confront him when he's not on his turf, maybe kind of public. If he wants to make it a fight, he'll have to wait. Tomorrow I'll go into town and look for him."

A "plan" formed, they go their separate ways. 

And the next day, Stiles takes Scott and Kero to the center of town. 

Nope.

"Okay. Um. Kero, do you want to get something to eat, while we're out. Doesn't have to be completely wasted." 

"Ooh, ice cream?"

Scott gets enough ice cream for three.

Stiles gets one, and Kero gets the other two.