At last she reached the bridge. The wind still sighed and whistled, and the river continued to break its current against the pillars, as though irritated at meeting obstacles which it could no longer sweep away.

Catherine approached the buttress of the bridge. An involuntary shudder of terror passed through her frame. Was it because she stood on the edge of that abyss of roaring waters? Or was it because her hand, only accustomed hitherto to deeds of goodness, was now brandishing the torch of destruction? Or rather did she tremble because a tremendous peal of thunder at that moment resounded through the vault of heaven.

Waving the torch to kindle it afresh, she applied it to the dry, resinous wood of the scaffolding. The wood quickly ignited, and the flame, fanned by the wind, ascended with fearful rapidity, spreading and involving arches and framework and the whole structure of the bridge.

"THE FLAME ASCENDED WITH FEARFUL RAPIDITY."

Then she quitted the scene swiftly. Aided by the glare of the conflagration and the vivid flashes of lightning which lit up the sky, Catherine soon traversed the space which separated her from her home. She entered as noiselessly as she had left it, and closed the door. Her husband still slept soundly, and had not missed her. Catherine again pretended to be fast asleep, as though she had never left her bed.

A few moments later, a noise of many people running arose within the city, while from every belfry the bells rang forth the terrible alarm of fire. A tremendous crash succeeded, followed by a cry of anguish such as had been uttered years before, when the besieging army wrecked the former bridge.

Juan awoke in terror; Catherine lay at his side, apparently sleeping calmly. He dressed himself in haste, and ran out to learn the reason of the uproar. To his secret joy he beheld the ruin of the burning bridge.

The Cardinal Archbishop and the Toledans attributed the disaster to a flash of lightning which had struck the central arch, and had, moreover, ignited the whole structure. The general sorrow was intense. Great also was the public sympathy with the despair which the calamity must have caused the architect, who was on the eve of a great triumph. The inhabitants never knew whether it was fire from heaven, or an accident that had caused the conflagration; but Juan de Arèvalo, who was good and pious, and firmly believed in the protection of heaven, never wavered for an instant in the belief that the bridge had really been destroyed by lightning.

The destruction of the bridge, however, only retarded Juan's triumph for a twelve-month. On the following year, on the same festival of San Ildefonso, his new bridge was solemnly thrown open by the Cardinal; and the joyous Toledans once more crossed the Tagus to visit the lovely grounds of the Cigarrales, which they had been deprived of for so many years. On that auspicious day the Cardinal celebrated the event by giving a magnificent banquet. At his right hand sat the architect and his noble wife; and after a highly complimentary speech from the Cardinal, the whole company, amidst a tumult of applause, conducted Juan and Catherine to their home.