"Good question."

He stains the perfected glass. Red and blue and purple.

"Oh, that's interesting."

"It is?"

"It's not what normal stained glass looks like."

"What does normal stained glass look like?'

"The colors come in smaller pieces than that."

"Why?"

"Sometimes they make pictures."

"Ooh. I don't know if I'd be good at that."

"Do you want to see normal stained glass?"

"Yes."

"Okay!"

She leads him to a part of the palace with stained glass windows, both pictured and abstract.

"Oooh. It has things that aren't glass between the glass."

"Yeah, it does."

"Why?"

"To hold the pieces together."

"Why not just use one piece of glass that's the size of the window?"

"That would be harder to color.'

"How?"

"...It's easier to make glass be all one color than a lot of colors, but once you've got a lot of little one-color glasses you can put them together into a big multicolored thing."

"Ohhhhhh."

"Most people can't directly tint the glass."

Nod. "What do they do to make it be colors, then?"

"I don't know. Maybe there's a book about it in the library."