"Some years ago. Bubastis accompanied me when I was brought here, apparently." Adrian pauses for a moment, a little frown creasing his forehead as he looks down at the animal, because this is still a point that bothers him more than he's been letting on.

Noting the (very wise) care Lex is taking to remain still, Adrian sends Bubastis to lie down next to the couch, in a much less aggressive pose where Lex can have a better look at her. "Before I became interested in physics, I did some genetic experimentation. Bubastis is my crowning achievement."