They were located in a large oblate cavern in which tube lights, stuck to the walls, revealed to be toothed with orange and green stalactites and stalagmites. Arach reared up against one wall, perhaps feeling the approach of the burrowers through his feet. To one side of Cormac lay an individual wrapped in a heat sheet, a small autodoc clinging at the neck. Difficult, at a glance, even to know the soldier’s sex, the patient’s head being burned raw and featureless. Some dracomen moved about, checking equipment which ran optics to probes sunk in the surrounding stone. The silvery skeleton of a Golem strode past, shedding pieces of charred syntheflesh.

‘Can we go deeper?’ Cormac asked.

Blegg sighed and plumped himself down on a rock. ‘Yes, we can go deeper. A fissure leads down at an angle over there.’ He pointed past the stripped Golem to a dark cave mouth. ‘But we are only delaying the inevitable.’

Cormac peered at him. ‘You’re normally a little more upbeat than this. Surely our whole lives are spent delaying the inevitable.’ He felt a sudden unreasonable anger at what he felt to be Blegg’s fatalism, while in another layer of his mind understood his own reaction being due to the loss of Thorn. ‘Do you suggest we surrender, then, or just kill ourselves here?’

‘I’m presently suffering from a dearth of suggestions,’ Blegg replied.

Cormac allowed his anger some slack. ‘Then let me suggest that it is time for you, Horace Blegg, to take your leave of us. Since you possess the means.’

Blegg stared at him, and it seemed something metallic glinted in the old man’s eyes. ‘My time has been interesting,’ he stated. ‘Since that runcible connection opened to Celedon station, I have learnt much.’ The gleam faded from his eyes and he gazed off into the darkness and continued more introspectively. ‘As well as obtaining the U-space signature for Jain nodes from an Atheter AI, I obtained the beginning of revelation. That AI replayed for me the key episodes in my life since Hiroshima, and only from that alien perspective did I understand how so very fortunate I was to be present at most of the pivotal events in history since then—not enough to make me overly suspicious, but no small number either.’

‘And this is leading where?’ asked Cormac, impatient now to do something, anything.

Blegg turned and stabbed a finger at him, the metal back in his eyes. ‘You, Ian Cormac, believed me to be an avatar of Earth Central, a construct. I tried to ignore that suggestion because the immediacy of my existence has been too real to me, yet you planted the seed of doubt. Is my history my own, is my mind my own? Am I real? I cannot erase doubt, and I see it would have continued to grow.’

‘Would have?’

‘I never told you where I obtained that Jain node.’

‘True, you did not.’