[A bit sad that the goof detective of the underworld might know more.]

Oh. I guess that would explain the teacher relationship you guys have...[He started to count off with his fingers.] Just how old is Terra, then? He looked younger than me. [Ah! Maybe it was a senpai/kouhai relationship! That would explain a lot.

And they arrived to the large patch of green the bubble had. He paused a moment, thinking about the directions for a moment. Then he set off again. Thankfully it was something vivid in his memory, otherwise they might need Riku to sniff it out.]