"Oh, well I just have to beat Skyla to get where you are at the moment but the Celestial Tower was so fascinating that I forgot a bit about training~" Estelle giggled nervously.

"Did you know its base structure was formed around -- years ago when settlers in Unova had... ...and what's most striking is the bell's structure you see ... and because of this the Pokemon in the Tower are drawn to... ...Oh um, sorry, I ranted."

Most of that probably went over Sephiroth's head.