[Luke has been having a rough go the last few weeks, and he's primarily kept to himself. But the loneliness is starting to bother him--without working with Satsuki he's felt rather like there's been nobody to spend time with at all.

As such, he's rectifying this problem the best way he knows how: a puzzle.]

At home, the Professor and I solved lots of puzzles. I know people here don't seem to like them quite as much, but they're still fun to do. So...um, I thought I'd share this one. It's easy to do without any pictures, so I thought it'd be a good one to start with.

"There are ten siblings living together. Let's say that I'm the eighth child. The oldest daughter is the second son's younger sister and the third son's older sister. The fourth son is the second daughter's older brother, and the older daughter's little brother. There are no boys between the third and fourth daughters. So--is the third-youngest child a boy or a girl?"

I've got plenty more puzzles, I keep track of all of them. And I can give you a hint if you need one, too.

[With that, the boy waits. Someone, please answer!]