of the neighbourhood, that there was one tunnel in this labyrinth which led straight into the church, and it was in this direction that he must surely try to go. He crawled back into the centre of the passage, and raised himself on his arms: using his elbows for grip, he pulled his body after them while all the time he kept his head up so that he might see what was in front of him. He was moving forward slowly when he thought he heard a sound, a scraping sound, at the end of the passage from which he had just come: he turned his head in terror, but there seemed to be nothing there. Thomas now felt hot despite the coldness of the air; he could sense the sweat running down his forehead and along the side of his nose, and he licked it off with his tongue as it swelled in drops upon his upper lip. The pain in his leg seemed to fluctuate with the beating of his heart so he counted the sequence out loud and then, at the sound of his own voice, he began to cry. He was crawling past small rooms or chambers just outside the range of his ordinary vision and yet he tried to move softly, so as not to disturb those who might dwell in this place. In his agony he forgot that he was still going forward, although his mouth was open and he was gulping for air.
Then a change came over him: the pain in his leg disappeared, and he could feel the sweat drying upon his face. He stopped, shifting himself so that he was once more propped against the cold wall, and then in a clear, calm voice he began to sing a verse which he had learnt many years before: Build it up with bricks and mortar, Bricks and mortar, bricks and mortar, Build it up with bricks and mortar, My fair lady.
Bricks and mortar will not stay,
Will not stay, will not stay,
Bricks and mortar will not stay,
My fair lady.
He sang this three times, and his voice echoed down the passages and rooms before fading away in the recesses of stone. He looked at his hands, which had become filthy from his exertions, and he spat on them before trying to wipe them clean on his trousers. Then, when he had forgotten about his hands, he examined the passage with great care, looking all around him with that interested expression children assume when they think that they are being watched. He ran his hand along the wall at each side of him, and just above his head, feeling the cracks and patches which had formed there: he clenched his fist and knocked upon the wall, which gave back a muffled sound as if it might contain hollow spaces within itself. Then Thomas gave a great sigh, bowed his head, and fell asleep. He was walking out of the passage; now he was through the upper door and ahead of him was a white tower; now he was standing upon the tower and was poised to dive into the lake. But he was afraid, and his fear became a person. 'Why have you come here?' she said. He turned his back upon her and, as he looked down at the dust upon his shoes, cried, 'I am a child of the earth!' And then he was falling.
When her son had not returned by tea-time, Mrs Hill grew worried.
She went up to his room several times, and on each occasion its emptiness disturbed her more: she picked up a book which had been left on a chair, and noticed how carefully her son had inscribed his name on the title page; then she peered down at the model which he had been constructing -her face immediately above the miniature labyrinth. At last she left the room again, closing the door quietly behind her. She went downstairs slowly and sat in front of the fire, rocking herself to and fro as she imagined all of the harm he might have suffered: she could see him enticed into a car by a stranger, she could see him knocked down by a lorry in the road, she could see him falling into the Thames and being carried away by the tide. It was her instinctive belief, however, that if she dwelled upon such scenes in sufficient detail she could prevent them from occurring: anxiety was, for her, a form of prayer. And then she