[And again, just like that, she brightens up. All he did was offer to explain and now she's all smiles again. It doesn't-- add up. Fugo doesn't think he's being particularly friendly. He's not being unpleasant and he's taking care to be patient with her, but does that really justify how cheerful and excited she's become? Fugo doesn't voice his concern; instead, he shrugs and mentally shelves the thought for later.]

It's alright. I don't mind.

[It's not an unpleasant way to spend the time. And, frankly, he's grateful to have a task to focus on. Between the two of them, it's not long before they've collected the required stones. Fugo leads Leslie to the patch of dirt and, without much care for his already dirty clothes, folds down into a kneeling position. He lines the stones up in front of him while the girl (and her stuffed rabbit) get settled nearby.]

The model I'm about to make is of the solar system, the planetary system which my world, Earth, belongs to. [He begins with a single stone, which happens to be the largest of the ten. There's no way to keep anything to scale, but this is a point being made.] This stone represents the sun. The sun is a star. It's the largest body in the solar system and can be found at its very center. All the other celestial bodies, including Earth, are caught in gravitational orbit around it.