The train pulls into the platform, bringing a rush of cold air with it as well, so typical of the London Underground. You pull your coat a little more closely to you as the beeping announcing that the doors are opening. You seat into the last carriage, which is the emptiest of the train, and instantly regret it. As there is a bag lady seated in one corner and a homeless man in another. But it's too late to get off the train now, the doors have already closed, you find a seat.
Trying not to look directly at the other passengers in the eye, you watch the safety videos about pick-pocketing, and staying hydrated. Just as the voice of the announcer is saying that the next stop on the Piccadilly line is the Holloway Road stop. There is an explosion and the lights go out.