The girl looked up and nodded, sobbing.

“Tell me!”

“Paris,” she said.

Paris!

Aliena was jubilant. She was back on the trail. Paris was a long way, but the journey would be mostly over familiar ground. And Jack was only a month ahead of her. She felt rejuvenated. I’ll find him, in the end, she thought; I know I will!

“Are you going to Paris now?” the girl said.

“Oh, yes,” Aliena said. “I’ve come this far-I won’t stop now. Thank you for telling me-thank you.”

“I want him to be happy,” she said simply.

The servant fidgeted discontentedly. He looked as if he thought he might get into trouble over this. Aliena said to the girl: “Did he say anything else? Which road he would take, or anything that might help me?”

“He wants to go to Paris because someone told him they are building beautiful churches there.”

Aliena nodded. She could have guessed that.

“And he took the weeping lady.”

Aliena did not know what she meant. “The weeping lady?”

“My father gave him the weeping lady.”

“A lady?”

The girl shook her head. “I don’t know the right words. A lady. She weeps. From the eyes.”

“You mean a picture? A painted lady?”

“I don’t understand,” the girl said. She looked over her shoulder anxiously. “I have to go.”

Whatever the weeping lady was, it did not sound very important. “Thank you for helping me,” Aliena said.

The girl bent down and kissed the baby’s forehead. Her tears fell on his plump cheeks. She looked up at Aliena. “I wish I were you,” she said. Then she turned away and ran back into the house.

Jack’s lodgings were in the rue de la Boucherie; in a suburb of Paris on the left bank of the Seine. He saddled his horse at daybreak. At the end of the street he turned right and passed through the tower gate that guarded the Petit Pont, the bridge that led to the island city in the middle of the river.

The wooden houses on either side projected over the edges of the bridge. In the gaps between the houses were stone benches where, later in the morning, famous teachers would hold open-air classes. The bridge took Jack into the Juiverie, the island’s main street. The bakeries along the street were packed with students buying their breakfast. Jack got a pastry filled with cooked eel.

He turned left opposite the synagogue, then right at the king’s palace, and crossed the Grand Pont, the bridge that led to the right bank. The small, well-built shops of the moneychangers and goldsmiths on either side were beginning to open for business. At the end of the bridge he passed through another gatehouse and entered the fish market, where business was already brisk. He pushed through the crowds and started along the muddy road that led to the town of Saint-Denis.

When he was still in Spain he had heard, from a traveling mason, about Abbot Suger and the new church he was building at Saint-Denis. As he made his way northward through France that spring, working for a few days whenever he needed money, he heard Saint-Denis mentioned often. It seemed the builders were using both of the new techniques, rib-vaulting and pointed arches, and the combination was rather striking.

He rode for more than an hour through fields and vineyards. The road was not paved but it had milestones. It passed the hill of Montmartre, with a ruined Roman temple at its summit, and went through the village of Clignancourt. Three miles after Clignancourt he reached the small walled town of Saint-Denis.

Denis had been the first bishop of Paris. He had been decapitated at Montmartre and then had walked, carrying his severed head in his hands, out into the countryside to this spot, where at last he fell. A pious woman had buried him and a monastery had been erected over his grave. The church had become the burying place for the kings of France. The current abbot, Suger, was a powerful and ambitious man who had reformed the monastery and was now modernizing the church.

Jack entered the town and reined in his horse in the middle of the marketplace to look up at the west front of the church. There was nothing revolutionary here. It was a straightforward old-fashioned facade with twin towers and three round-arched doorways. He rather liked the aggressive way the piers thrust out from the wall, but he would not have ridden five miles to see that.

He tied his horse to a rail in front of the church and went closer. The sculpture around the three portals was quite good: lively subjects, precisely chiseled. Jack went in.

Inside there was an immediate change. Before the nave proper, there was a low entryway, or narthex. As Jack looked up at the ceiling he experienced a surge of excitement. The builders had used rib-vaulting and pointed arches in combination here, and Jack saw in a flash that the two techniques went together perfectly: the grace of the pointed arch was accentuated by the ribs that followed its line.

There was more to it. In between the ribs, instead of the usual web of mortar-and-rubble, this builder had put cut stones, as in a wall. Being stronger, the layer of stones could probably be thinner, and therefore lighter, Jack realized.

As he stared up, craning his neck until it ached, he understood a further remarkable feature of this combination. Two pointed arches of different widths could be made to reach the same height, merely by adjusting the curve of the arch. This gave the bay a more regular look. It could not be done with round arches, of course: the height of a semicircular arch was always half its width, so a wide one had to be higher than a narrow one. That meant that in a rectangular bay, the narrow arches had to spring from a point higher up the wall than the springing of the wide ones, so that their tops would be at the same level and the ceiling would be even. The result was always lopsided. This problem had now vanished.

Jack lowered his head and gave his neck a rest. He felt as jubilant as if he had just been crowned king. This, he thought, was how he would build his cathedral.

He looked into the main body of the church. The nave itself was clearly quite old, although relatively long and wide: it had been built many years ago, by someone other than the current master, and it was quite conventional. But then, at the crossing, there seemed to be steps down-no doubt leading to the crypt and the royal tombs-and steps up to the chancel. It looked as if the chancel were floating a little way above the ground. The structure was obscured, from this angle, by dazzling sunlight coming through the east windows, so much that Jack supposed the walls must be unfinished, and the sun shining through the gaps.

He walked along the south aisle to the crossing. As he got nearer to the chancel he sensed that something quite remarkable was ahead of him. There was, indeed, sunlight pouring in, but the vault appeared to be complete and there were no gaps in the walls. When Jack stepped out of the aisle into the crossing he saw that the sun was streaming in through rows of tall windows, some of them made of colored glass, and all this sunshine seemed to fill the vast empty vessel of the church with warmth and light. Jack could not understand how they had got so much window area: there seemed to be more window than wall. He was awestruck. How had this been done, if not by magic?

He felt a frisson of superstitious dread as he mounted the steps that led up to the chancel. He stopped at the top of the stair and peered into the confusion of shafts of colored light and stone that was ahead of him. Slowly the realization came over him that he had seen something like this before, but in his imagination. This was the church he had dreamed of building, with its vast windows and surging vaults, a structure of light and air that seemed held up by enchantment.

A moment later he saw it differently. Everything fell into place quite suddenly, and in a lightning flash of revelation, Jack saw what Abbot Suger and his builder had done.