He was not plying that trade now but nervously honing a razor, again and again, on a leather strop, and peering down the line of barracks doors, watching Tom the Black-guard make his rounds. Most of the garrison was extra muros on Tower Hill; in their absence Tom was going to each door in turn to polish the boots that had been left out by the soldiers. To look at him, Tom was a boy of about twelve. But he spoke with the voice, and answered to the urges, of a grown man, which made Dart suspect he was really a bloke who’d not grown properly.