James loved to climb into the hot, silent air over Granada, to escape the squabbles of mankind and the conundrums of morality, to ascend into the realm of birds, and clouds, and stars, and God. The clean, harsh breeze of Spain was even more conducive to supporting his flight than the soggy air over England’s green hills. And in long hours of practice he had learned to coax his machine ever higher into the sky, even after the elastic energy of its launching crossbow was exhausted. The trick was to seek out rising masses of warm air, invisible fountains in an atmosphere like an ocean, that would lift him up like a leaf on a breeze.

And, that bright October day, he had never seen anything quite as extraordinary as Granada, the last Moorish kingdom, and the Christian military city drawn up before it.

The Alhambra was like a vast ship stranded in the middle of the land, like the Ark fallen on Ararat. Somewhere in that fortress poor Boabdil was holed up, perhaps the last emir al-Andalus would ever know. The city of Granada was a splash of grey around the Alhambra itself, studded with the glittering gold of mosque roofs. The air over the city was brown with smoke this morning, for Granada was swollen with refugees. And he could make out a thin black line of caravans and mule trains heading south, Muslims fleeing further towards the Strait and the welcoming lands of Africa.

As he wheeled away from the fortress James flew over Santa Fé - ‘Holy Faith’, the Christian city-camp set out on the plain before Granada. Within a circle of walls and ditches it was a crucifix of buildings, with a glittering pile of weapons where the crucifix’s upright and crosspiece intersected. Santa Fé looked solid, centuries old, and yet it had been thrown up virtually overnight when the monarchs had brought their armies to within sight of the Alhambra. The speed of the construction had bewildered the Muslim defenders, but it was another of Fernando’s ruses; the ‘city’ was more wood frame and cloth than stone.

So at last the war had come to Granada itself. It was now two years since the final defeat for El Zagal, the Valiant, brother of the dead emir Muley Hacen. Now there was only Boabdil, an emir so hapless that the Christians called him El Chico, the little one, and even he called himself the Unfortunate. Defeated and imprisoned more than once, he had already agreed terms of a final surrender. But his own people were revolted by the way he had rejoiced at his uncle’s fall, and Boabdil had been forced to make a show of resistance. So Granada was besieged, with sixty thousand caballeros assembling at Santa Fé.