"Auron, I am honored that you care for me so. But I have come to kill grief itself. I will defeat Sin, and lift the veil of sorrow covering Spira. Please understand."

Any resemblance between him and genitalia is mere coincidence.

Well he's at least theatrical? That's, uh, nice or something.

No response if he speaks, presumably. "Testing," he sighs.

Nope, no response. They walk through Theo...

...and a transparent boy is occupying the space they were. "You don't belong here."

Hm. That sounds like it's directed at him. "You might need to be more specific."

"You're not with your summoner."

"I am also not a guardian, though. Nor am I, like, mortal?"

"You are a guardian. You were made a guardian."

He pauses. "That off-hand thing he said about me being fine means I'm his guardian?"

"It wasn't off-hand. He meant it."

"I'm sure he – wait, no, she? – I'm sure they did, but it was very brief and people seemed to consider it a very important thing and I wasn't expecting it to be something I could have missed."

"It's a bond between a summoner and someone else. Did you desire to protect him?"

"Yes? But in a more general 'this is a person and oh my fuck Sin and he seems like he's actually doing something about it and also was my literal summoner' kind of way! Does this have repercussions. Am I disallowed places because I'm magically– their guardian?"

"You followed him and protected him on the Mi'ihen Highroad. You helped her and sought her out on the Mushroom Rock Road. You are planning on returning to him to tell him of your findings." He shakes his head. "You are his guardian. You can go wherever he goes."

"Oh, so you saying I don't belong here was just a statement, not a threat?"

"Yes. But you shouldn't tell him about what you saw."

"… About the fact that I saw where Tidus is presumably from and nobody remembered him nor remembered the recent attack nor anything, or about how Jecht is inside Sin and a guardian will get screwed over to become the next controller, or what. And why."

"You shouldn't tell him about Zanarkand. It'll make him... hesitate."

"… Because Zanarkand will somehow be impacted by Sin disappearing?" asks Theo. "Does this happen to, by any chance, have anything to do with them all being magic because seriously that would fucking suck."

The kid remains silent.

"Wonderful," he sighs. "So, who are you?"

"I am a fayth."

"… I thought they were all statues and only summoners could interact with them in the cloister things. Or, like, Jecht, but I don't think most people know about fayth-turned-Sin-controller."

"The statues are connected to us, and they're where we sleep. We're not limited to them, and Zanarkand has enough pyreflies other people can see us." And indeed there are as many pyreflies flying around the skies and floating from the ground as there were inside Sin.

"Well, that's… somewhat convenient, especially seeing as how you're sort of immortal?"