Dexter listened to the rambles with polite interest, mentally taking note of everything she said. Any of it might be useful in the future, he sensed this wasn't something he could walk away from. And he found he didn't want to.
Then she asked that and he smiled darkly.
"Oh I think I can."
The predator in him was excited at the thought of new, tougher prey. And really, how much more deserving could they get?