She knew exactly what he was wearing. He had on a heavy wool robe gathered at the waist by a broad studded belt. His purse was tied to the belt with a leather thong. Over the robe he wore an embroidered surcoat, costly but worn, with yellowing bone buttons down the front. He had done up some of the buttons, but not all, probably out of sleepy laziness, or because the walk from the hospital to the church was so short.
With a touch as light as possible, Gwenda put one small hand on his coat. She imagined her hand was a spider, so weightless that he could not possibly feel it. She ran her spider hand across the front of his coat and found the opening. She slipped her hand under the edge of the coat and along his heavy belt until she came to the purse.
The pandemonium faded as the music grew louder. From the front of the congregation came a murmur of awe. Gwenda could see nothing, but she knew that a lamp had been lit on the altar, illuminating a reliquary, an elaborately carved ivory-and-gold box holding the bones of St Adolphus, that had not been there when the lights went out. The crowd surged forward, everyone trying to get closer to the holy remains. As Gwenda felt herself squashed between Sir Gerald and the man in front of him, she brought up her right hand and put the edge of the knife to the thong of his purse.
The leather was tough, and her first stroke did not cut it. She sawed frantically with the knife, hoping desperately that Sir Gerald was too interested in the scene at the altar to notice what was happening under his nose. She glanced upwards and realised she could just about see the outlines of people around her: the monks and nuns were lighting candles. The light would get brighter every moment. She had no time left.
She gave a fierce yank on the knife, and felt the thong give. Sir Gerald grunted quietly: had he felt something, or was he reacting to the spectacle at the altar? The purse dropped, and landed in her hand; but it was too big for her to grasp easily, and it slipped. For a terrifying moment she thought she was going to drop it and lose it on the floor among the heedless feet of the crowd; then she got a grip on it and held it.
She felt a moment of joyous relief: she had the purse.