Dustin does some similar mental calculations of his own. Fourteen years old. He arcs an eyebrow. ...Really fucking built for a fourteen-year-old. Comparative physiology might not be suitable here.

But that isn't important right now. "Then I would say that our universes are divergent," Dustin concludes with an affirmative point in Donatello's direction. "The name is accurate - they're global. Been sticking their fingers in everybody's pies since the 1940's. If your secret underground city of yōkai exists in my world, I wouldn't be surprised if they had dealings with the GTP."