They saw the light that had come from the east, that had raced already across the tangled forests and huddled settlements of Europe, across river and toll-gate, Schloss and chastel and earthwork. Everywhere on the continent it had lit soldiers gathering, provision-carts mustering, horse-boys leading remounts.

As it swept towards the English Channel—though at this time men called it still the Frankish Sea—it touched the topmost banderole on the stone donjon within the wooden keep that guarded the port of Dunkerque. The guard-commander looked at it, nodded. The trumpeter wetted his lips, pursed them, sent a defiant bray down his metal tube. Immediately the quarter-guards answered from each wall, men began to roll from their blankets inside the keep. And outside, in the camp and the port, and along all the horse-lines that trailed off into the open fields, the soldiers stirred and checked their gear and began the day with the same thought as the sailors who were trapped in the port: this time, would their master stir? Would King Charles, with his levies, with the levies sent him by his pious and Pope-fearing brothers and nephews, give the sign for the short trip to England?

In the harbor, the skippers looked at their weathervaries, stared towards the eastern and western horizons. The master of the cog Dieu Aide, the cog which would carry not only the king but the archbishop of York and the Pope’s legate himself, nudged his chief mate, jerked a thumb at the flag standing out stiffly from the mast. High tide in four hours, both knew. Current would be with them then and for a while. Wind in the right quarter and not dropping.

Could the landsmen get themselves down and embarked in time? Neither bothered to speculate. Things would be as they would be. But if the king of the Franks, Charles, nicknamed the Bald—if the king seriously wanted to obey the instructions of his spiritual lord the Pope, unite the old dominions of his grandfather Charlemagne, and plunder the wealth of England in the name of holiness, then he would never get a better chance.

As they watched the flag and the wind they heard, half a mile off in the donjon trumpets blaring again. Not for dawn, but for something else. And then, faintly, carried on the southwest wind, the noise of cheering. Soldiers acclaiming a decision. Without wasting words, the captain of the Dieu Aide jerked a thumb at the derricks and the canvas slings, tapped the hatches of the cog’s one hold. Get the hatches off. Get the derricks over the side. We’ll need them for the horses. The war-horses, the destriers of France.