There is a certain bookstore just one street out of the way of the path between school and Terence's house. In that bookstore a certain corner has a large pile of unceremoniously stacked books labelled '25¢ each'. Terence is digging through them for science fiction. Most of it is self-improvement books, or recipe guides, or trashy romance novels. The few sci-fi pieces he finds will probably be really crappy science fiction, but he still has to try.
"Oh. They're... magic. Some of them can talk, and they vary a lot, but they're all smart."
"And I have to capture them to prevent catastrophe, but I'll try to treat them well anyway." Great, now I have a moral responsiblity.
He puts Float back into the book, tosses Windy out, tap, "Windy!"
"Hello, Windy. I want to get to know you a bit. Do you want anything in particular from me?"
"You want me to learn magic? Capture more cards? Something to do with magic that isn't those two things? Or completely wrong again?"
"D'you think meditating will help, Cerberus?"
"...Do you mind if I give you a nickname, Cerberus doesn't seem quite right." Since he's not a giant scary three-headed dog and all.
"Meditation always helps in understanding what your cards mean," he agrees. "And this isn't my true form," he says, guessing what Terry's on about.
He looks toward the setting sun. It's getting chilly. "Windy, please return. I'll try to figure you out later, promise. Cerberus, I'm gonna go home. You want to come with or find someplace for yourself out here? If you come with me you'll have to try and hide from my family. They'd probably think you were some kind of animatronics I made as a prank."
"I can be very quiet," he says, and becomes as still as a plush toy.
...a floating plush toy.
"And not obviously magic. Would you mind riding in my backpack?" He asks, while packing the Clow Book and his notebook and pencils into same.
And Terry bikes home. How do you even meditate?
Eh, he'll look it up on the family computer. If he can kick his goody-two-shoes going-to-be-a-fancy-lawyer brother off it for two minutes.
When he gets home he has a short conversation about the imminent family dinner and where were you honestly, then rushes up to his room and lets Cerberus out.
"I'm going to research how to meditate real quick. I can probably get out of the family dinner by saying I have lots of homework. Do you want me to bring you something?"
"Today? Chicken and pasta and bread and really fancy sauce my mom likes to buy. Chocolate chip cookies as dessert."