are not allowed to him."

"I want to go home," said Madman.

"Most sensible thing you've said all day," said Sinner.

The stairs finally curved around a corner and came to an end, facing a great and elegant chamber carved out of crystal. A pleasant, comfortable light appeared suddenly overhead, bursting out of one crystal facet after another, until the whole chamber was bright as day, like standing in the heart of a huge diamond. In the centre of the crystal cave was a single raised slab of polished stone, and on that slab, sleeping peacefully, a man. He didn't look particularly dangerous, with his grey hair and grey robes, and a calm face apparently untroubled by care. We all filed into the shining chamber, looking uncertainly about us. I think we'd all been expecting more guardians, more defences, but everything was still and quiet. Like the eye of the storm.

Etched into every crystal facet were characters from the language known as Enochian, a tongue created for men to speak to angels. I recognised it, but I couldn't read it. Not many can. It is corrosive to rational thinking. Pretty Poison moved along one wall, tracing the characters with a fingertip.

"These are names," she said softly. "Names beyond number, of angels from Above and Below, from all ranks and stations ... Even ray name is here. My true name, from before the Fall. No mortal should have access to this knowledge..."

"But... why write them here?" said Sinner.

"Because to know the true name of a thing is to have power over it," said Pretty Poison. 'To command and to control. Whoever put the Lord of Thorns here, and made him Overseer of the Nightside, has given him power over all the agents of Heaven and Hell."

"No wonder he was ripping the wings off angels during the angel war," said Sinner. "But who could give him that kind of power?"

'Two possibilities come to mind," said Madman.

"Shut up," said Pretty Poison.

She sounded shocked, upset. I was concentrating on the man on the slab. He hadn't moved at all since we entered his domain. But I didn't think he was sleeping. Sleeping people usually breathe now and again. And then my heart missed a beat as he sat up abruptly, swinging his legs over the side of the slab, and sat facing us. We all froze where we were, caught in the gleam of his gaze, like burglars picked out by torchlight in a place they should never have entered. With his long grey robes, hair, and beard, the Lord of Thorns looked like nothing so much as an Old Testament prophet. The kind that told you the Flood was coming, and you'd left it far too late to book seats on the Ark. His face looked older than any man's should, and his eyes were fierce and wild and touched with a divine madness. His presence filled the crystal cave, and under his gaze we all flinched and felt unworthy.

Except, of course, for Madman, who shouted Daddy! and tried to climb into the Lord of Thorns' lap. We all grabbed him, and dragged him away by brute force. And then one by one, we knelt before the Lord of Thorns. His presence demanded it. Madman shrugged, and knelt with us. I kept my head down and tried to look penitent. This was a place of judgement. I could feel it. And judgement without mercy or compassion is always to be feared.

The Lord of Thorns stood up slowly, his joints cracking loudly, and I risked a quick look. He was leaning on a simple wooden staff, and I felt something inside me shudder at the sight of it. Word was the wood of that staff had been taken from a tree grown from a sliver of the original Tree of Life, brought to England in Roman times by Joseph of Arimathea. There were those who said the Lord of Thorns was Joseph of Arimathea. He looked old enough. When he finally spoke, his words sounded like rocks grinding together.

"I am the stone that breaks all hearts. I am the nails that bound the Christ to his cross. I am the arrow that pierced a King's eye. I am the necessary suffering that makes us all stronger. The cold, clear heart of the Nightside. It was given to me to have dominion over all who exist here, to protect the Nightside from itself. I maintain the Great Experiment, watching over it, and sitting in judgement on all who