Jane walked quickly away from the ticket office, down the escalator towards the platform and the trains. Halfway down the escalator she looked back up behind her;
Oh my God, she thought, it's Anna!
Quickly, Jane ran down to the bottom. and onto one of the platforms. There was a train there, with its doors still open. She ran towards them, but as she ran, the doors closed and the train moved away into the tunnel. Anna was now coming onto the platform behind her. Anna's hand was inside her coat and Jane was pure she had a gun.