(Yay! I'm glad to hear that. I couldn't resist the idea of Yotsuba experiencing the Tower.)

[Yotsuba stopped for a moment before the boy and his doggy crashed into her. At least, she thought it was a doggy. Upon seeing the animal, she brightened up and tried to pet it.]

A doggy! Do you know where Daddy is?

[After all..weren't doggies supposed to be really good trackers?]