World Without End Page 0,33

Elfric too much. He would leave the moment he could.

"Let's look at it from above," said Godwyn.

They walked towards the east end. Elfric said: "It's good to see you back from Oxford, Brother Godwyn. But you must miss the company of all those learned people."

Godwyn nodded. "The masters are truly astonishing."

"And the other students - they must be remarkable young men, I imagine. Though we hear tales of bad behaviour, too."

Godwyn looked rueful. "I'm afraid some of those stories are true. When a young priest or monk is away from home for the first time, he may suffer temptation."

"Still - we're fortunate to have the benefit of university-trained men here in Kingsbridge."

"Very kind of you to say so."

"Oh, but it's true."

Merthin wanted to say: Shut up, for pity's sake. But this was Elfric's way. He was a poor craftsman, his work inaccurate and his judgement shaky, but he knew how to ingratiate himself. Merthin had watched him do it, time and again - for Elfric could be as charming to people from whom he wanted something as he could be rude to those who had nothing he needed.

Merthin was more surprised at Godwyn. How could an intelligent and educated man fail to see through Elfric? Perhaps it was less obvious to the person who was the object of the compliments.

Godwyn opened a small door and led the way up a narrow spiral staircase concealed in the wall. Merthin felt excited. He loved to enter the hidden passageways of the cathedral. He was also curious about the dramatic collapse, and eager to figure out its cause.

The aisles were single-storey structures that stuck out either side of the main body of the church. They had rib-vaulted stone ceilings. Above the vault, a lean-to roof rose from the outer edge of the aisle up to the base of the clerestory. Under that sloping roof was a triangular void, its floor the hidden side, or extrados, of the aisle's vaulted ceiling. The four men climbed into this void to look at the damage from above.

It was lit by window openings into the interior of the church, and Thomas had had the foresight to bring an oil lamp. The first thing Merthin noticed was that the vaults, viewed from above, were not exactly the same in each bay. The easternmost formed a slightly flatter curve than its neighbour, and the next one - partly destroyed - looked as though it was different again.

They walked along the extrados, staying close to the edge where the vault was strongest, until they were as near as they dared go to the collapsed portion. The vault was constructed in the same way as the rest of the church, of stones mortared together, except that ceiling stones were very thin and light. The vault was almost vertical at its springing but, as it rose, it leaned inwards, until it met the stonework coming up from the opposite edge.

Elfric said: "Well, the first thing to do is obviously to rebuild the vaulting over the first two bays of the aisle."

Thomas said: "It's a long time since anyone in Kingsbridge built rib-vaulting." He turned to Merthin. "Could you make the formwork?"

Merthin knew what he meant. At the edge of the vault, where the masonry was almost upright, the stones would stay in place by their own weight; but, higher up, as the curve turned towards the horizontal, some support was needed to keep everything in place while the mortar dried. The obvious method was to make a wooden frame, called formwork or centering, and lay the stones on top of that.

It was a challenging job for a carpenter, for the curves had to be just right. Thomas knew the quality of Merthin's craftsmanship, having closely supervised the work Merthin and Elfric carried out at the cathedral over several years. However, it was tactless of Thomas to address the apprentice rather than the boss, and Elfric reacted quickly. "Under my supervision he can do it, yes," he said.

"I can make the formwork," Merthin said, already thinking about how the frame would be supported by the scaffolding, and the platform on which the masons would have to stand. "But these vaults were not built with formwork."

"Don't talk nonsense, boy," Elfric said. "Of course they were. You know nothing about it."

Merthin knew it was unwise to argue with his employer. On the other hand, in six months he would be competing with Elfric for work,