Full moon! Not only that, but one of those days when the moon is visible during the day, too.

"Potentially important. But it would have been potentially important were it a waning crescent, since we don't know how the magic works."

"Hey, Kero... you said you were a guardian responsible for the Sun cards, yeah?"

"Yeah."

"Which is exactly half the cards."

"Yeah...?"

"… So is there a Moon thing?"

"Thing?"

"… Magical moon wildcat thing in its true form?"

"There isn't a magical moon wildcat."

"Is there a magical moon something else?"

"...yes."

"Do you not want to talk about them?"

He shrugs. "He's not around."

Rrright.

"As in missing or as in – something happened?"

"Missing. I don't know where he is."

"I'm guessing you don't know of a convenient way to find him? Could we do something with sorcery, do you think, call upon cardinal directions to locate him?"

Never mentioned this before, did he. Nope. Missing twin-or-counterpart-or-whatever.

"I don't know any sorcery—maybe?"

Theo shrugs. "We could try it sometime – I was wondering if you'd heard anyone doing that sort of thing before."

"What sort of thing?"

"… Finding things with sorcery calling upon cardinal directions."

"I don't know any sorcery, after Clow made us he didn't really do any."

Shrug.

"Wouldn't hurt to try, anyway. He's Moon, yeah? What's his name?"