[Its surprising how interested Mycroft really is in the story - Lestrade had just assumed the man was just amusing him, but the more he went at it the more it seemed that the interest was actually genuine. And that's... well, Lestrade isn't sure what to make of it. Besides 'flattering', possibly, but that alone was a bit much.

He nods at the question, continuing.] Yeah, well. Couldn't just let him get away, and if he escaped now it'd be hard to get him again without having to ask Sherlock. So I just did what I had to do.