And to him who held the Chair of Magic at Saragossa it was a precious thing that his windows could be made to show these marvels, while the guest to whom he was about to display these two gems of his learning was thinking of little but what he should see through the windows, and not at all of what spells, what midnight oil, what incantations, what witchcrafts, what lonely hours among bats, had gone to the gratification of his young curiosity. It is usually thus. The Professor rose: his cloak floated out from him as he left the chamber, and Rodriguez following where he guided saw, by the torchlight in the corridors, upon the dim purple border signs that, to his untutored ignorance of magic, were no more than hints of the affairs of the Zodiac. And if these signs were obscure it were better they were obscurer, for they dealt with powers that man needs not to possess, who has the whole earth to regulate and control; why then should he seek to govern the course of any star? And Morano followed behind them, hoping to be allowed to get a sight of the wars. They came to a room where two round windows were; each of them larger than the very largest plate, and of very thick glass indeed, and of a wonderful blue. The blue was like the blue of the Mediterranean at evening, when lights are in it both of ships and of sunset, and lights of harbours being lit one by one, and the light of Venus perhaps and about two other stars, so deeply did it stare and so twinkled, near its edges, with lights that were strange to that room, and so triumphed with its clear beauty over the night outside. No, it was more magical than the Mediterranean at evening, even though the peaks of the Esterels be purple and their bases melting in gold and the blue sea lying below them smiling at early stars: these windows were more mysterious than that; it was a more triumphant blue; it was like the Mediterranean seen with the eyes of Shelley, on a happy day in his youth, or like the sea round Western islands of fable seen by the fancy of Keats. They were no windows for any need of ours, unless our dreams be needs, unless our cries for the moon be urged by the same Necessity as makes us cry for bread. They were clearly concerned only with magic or poetry; though the Professor claimed that poetry was but a branch of his subject; and it was so regarded at Saragossa, where it was taught by the name of theoretical magic, while by the name of practical magic they taught dooms, brews, hauntings, and spells. The Professor stood before the left-hand window and pointed to its deep-blue centre. "Through this," he said, "we see the wars that were."