For twenty years Murdo Gallacher had done the absolute minimum. He had been bored by the job before he had been a week at it, but he had found it a rich lode and he had stayed to mine it. If you got morning tea from Murdo the tea would be weak, the biscuit soft, the sugar dirty, the tray slopped, and the spoon missing; but when Murdo came to collect the tray the protests which you had been rehearsing died on your lips. Now and then an Admiral of the Fleet or something like that would venture an opinion that it was damned awful tea, but the ruck smiled and paid up. For twenty years they had paid up, weary and browbeaten and blackmailed. And Murdo had collected. He was now the owner of a villa at Dunoon, a string of fried-fish shops in Glasgow, and a very nice bank balance. He might have retired years ago but he could not bear the thought of losing his full pension; so he endured the boredom a little longer and evened things up by not bothering with early morning teas unless passengers suggested the thing themselves; and sometimes, if he was very sleepy, forgetting about the order anyway. He hailed the end of each journey with the relief of a man who is working out his sentence and has only a short time left.

Alan Grant, watching the lights of the yard float past beyond the steamed-up window and listening to that gentle sound of the wheels clicking over the points, was glad because the end of the journey was the end of a night’s suffering. Grant had spent the night trying not to open the door into the corridor. Wide awake, he had lain on his expensive pallet and sweated by the hour.