[He listens and looks thoughtful of her explanation.]

Yeah, I mean, Alternia has two moons, so with there only being one here, it's pretty damn weird. Perigees are also based on the moon, it's the point when the moon's orbit is the closest to the planet—but wait, you didn't have a sun or stars? Portal magic?

[He's not even sure how the hell that happens, unless someone is kept completely underground. And having been someone who, for the better part of his life, was indeed made to be subterranean, he can uniquely say that even he knows of their existence.]

You're the second person to allude to another troll being here, but apparently she isn't anymore. But yes, I am a troll—a Jade blood.