over one of Constantinople’s ancient cisterns. The most disturbing thing about it was its silence in the midst of such a busy city. Every other building in that area burst with noise, from the beggars and traders on the steps of Hagia Sophia to the clucking officials coming and going from the palace and the young men of the Magnaura laughing and fooling their way to their studies. Not so the Numera. Even the relatives of the prisoners, straining at the bars of its gates to offer food for the inmates and bribes to the guards, were cowed and subdued. The building itself was utterly quiet, its walls thick and the labyrinth of cells and tunnels, man-made or natural, that sprawled beneath it so deep that no sound of torment ever escaped.
The Numera was the plainest building on the road, a square block of unfaced brick in dirty yellow, like a stubby bad tooth in the mouth of a beautiful woman, thought Loys. At dawn it sat directly in the shadow of the great church, squatting silent in darkness as if the sun feared it. He guessed it would be getting a few more inmates with the emperor’s return.
He arrived at the steps of the Magnaura, its vast columned porch looming above him. He went up, nodding to the guard at the scholars’ gate, and passed through into the cloistered garden that led to the Senate House – which is what the school was still called, though the senators had long gone.
The scent of olive trees hit him. In the streets no tree would survive a moment – firewood and building materials being precious commodities. Here they stood in smart lines, their branches heavy with the green and purple fruit. He picked one and sucked off its flesh. ‘Agh!’ Bitter. He smiled to himself, wondering if they always tasted that way straight off the tree. He imagined Beatrice by his side, laughing and saying, ‘Well, there’s something you didn’t know, you with all your learning.’
Birdsong filled the air but it came from no natural birds. At the bottom of the line of olive trees was one of the wonders of the city – another olive tree, life-size and cast in bronze, with splendid birds in its branches, their glass feathers catching the light in spangles of colour. Their song piped high and sweet, backed by a sound like rain from the water that powered the machine. He would never get used to this, he thought. In some ways he considered it unholy and recalled the passage from the Bible: ‘Thou shalt not make unto thee any graven image, or any likeness of any thing that is in heaven above, or that is in the earth beneath, or that is in the water under the earth.’
God forbade such things. But could God begrudge man such beauty? Loys would have loved to have shown the singing tree to Beatrice, though that was impossible. No woman was allowed in the precincts of the university. He moved on.
The Senate House had an exterior of light yellow cement with three big arches of windows sitting beneath a dome. He still felt a thrill entering the exalted halls of the Magnaura. Today he had just a couple of teaching jobs – rhetoric and philosophy to the dense sons of some nobles. They weren’t inclined to learn much so he wasn’t inclined to teach much, and beyond giving them a few philosophers’ names to drop when questioned by their families, he spent his time with them talking of the many curiosities of the earth – the dragons of the east and the sand seas of Arabia.
Then he would take a class on law himself and – the highlight of his day – join the formal debate in the afternoon. That day he was speaking on the energies of God as separate from the essence of God – how we can know what God does but never what he is. Loys had also prepared a speech on the practice of hesychasm – a hermitage of the soul, withdrawing and stripping away all sensory perception until the eye of the soul awakens and an intuitive knowledge of God is developed. Loys was a theoretical rather than a practical student of this discipline.
He