Watchtower Seven's Last Soldier

The wall has ten thousand towers. Only one of them is built to be buried.

Watchtower Seven is the loneliest post on the Zhao dynasty's northern rampart: one rock, one smoke pit, and a complement of exactly five men, the only tower on the line that the charter keeps at five, the only tower whose founding orders promise no relief. The Ministry calls it a budget line. The old chief calls it an oath. Nobody calls it what it actually is, because nobody knows yet that a previous dynasty buried an entire army's iron under the charcoal field below, six thousand crossbows sleeping behind a sealed bronze door, and built a five-man tower on top of it so that no one would ever be strong enough to use the prize.

Cheng Tieyi arrives at the tower as a penal conscript, a grain-yard man who struck a clerk for short-weighing his dead father's ration, with rope-scarred hands and a habit of counting things that cannot be counted back. On his first night he is put on the wolf smoke as a punishment and a test, and in his sleep he sees the Beidi vanguard strung out under the west ridge in a counted line of torches, and he beats the gong, and the military law gives him twenty strokes for a false alarm. The tower he named falls before dawn, exactly as he saw it.

That is the first lesson of the border: a true thing in a conscript's mouth is worth less than a lie in an officer's. His second lesson is the smoke's own price. The sight comes only when he tends the smoke through its dying, and every vision burns the sinew of one finger, in order, little to ring to middle to index to thumb. He sees farther as he holds less. Ten fingers, and each one buys a warning, and no warning in this army is believed until it is bought twice, once in flesh and once in rank.

So the boy from the grain yard begins to climb, a corporal's knot, a beacon chief's seal, an overseer's warrant over the line's whole smoke discipline, each rung paid for in a battle where the cost is named: a cook who dies taking a shaft meant for him, a chief who holds a spiral stair alone, a crossbowman who logs every bolt like a miser and his friend, a kiln keeper with a family oath four hundred years deep. And with every finger the sight takes, Tieyi sees more of what the war is really about. Not grain. Not passes. The iron under the snow, and a buyer in the capital who has already signed the losses, pre-dated the fires, and written five expendable men into the papers as the price of keeping the whole account clean.

Then the great snow comes, the passes close, and the horde moves its crossing to the one week no relief can march. One tower. Six men. Three days before the river decides the war.

To win them, the last soldier of Watchtower Seven will light the one signal that shows everything, and pay for the whole board at once.

The roll is long. Somebody has to read it aloud.