See the post below this one for some hints on how to fill in the gaps between the bookends of today's prompt.
Left Bookend: The owner wasn't supposed to chase her into the station, the thief thought frantically as she dodged and weaved to put more of the lunch-hour crowd between her pursuer and herself. She knew that he had insurance on this thing.
Right Bookend: The thief grimaced as she heard the automated reminder to 'mind the gap'. Disappointed, the thief slipped up the escalator and thought that at least she had gotten away.