‘You’re my friend and you would have died. You wouldn’t have listened to a stranger in a coffee house. It had to be something you were wondering about for a long time.’ ‘I did. What was the extra clockwork for?’ ‘To measure where you were. If the alarm went off at the wrong moment you would have been in the blast when you stopped, not outside it. You didn’t know to listen for it, so it had be variable. Makes it a bit heavy actually, I can take it out now if you like.’
