Something drew her eye, far to what she judged to be the south. She looked sharply in that direction, but caught only a fading nimbus: a blue-violet glow retreating behind the nearest line of hills.
A moment later, she saw another flash in the same direction. It was as sharp and quick as an eye-blink, but it left the same dying aura.
A third. Then nothing.
She had no definite idea of what the flashes had been, but she guessed that the direction she was looking in could not be far from the position on the Permanent Way currently occupied by the cathedrals. Perhaps she had witnessed part of the clearing operation of which the quaestor had spoken.
Now something else was happening, but this time much nearer. The rack on which the Observers were mounted was tilting, lowering itself down towards the horizontal. At an angle of about thirty degrees it halted, and with one eerily smooth movement the Observers all sat up, their shackles unlocked. The suddenness of the motion quite startled Rashmika. It was like the co-ordinated rising of an army of somnambulists.
Something brushed past her—not forcefully, but not exactly gently either. Then another something.
She was being passed by a procession of the same hooded pilgrims. She looked back and saw that there was a long line of them approaching the rack. They were emerging from a trapdoor in the roof of the caravan, one she had not noticed earlier. At the same time, the ones that had been on the rack were filing off it one row at a time, stepping down the gentle slope with synchronised movements. As they reached the roof of the caravan they made their own line, winding back around the rack and vanishing down another trapdoor. Even before the rack was fully vacated, the new batch of Observers were taking their positions: lying flat on their backs, buckling in. The entire shift change took perhaps two minutes, and was executed with such a degree of manic calm that it was difficult to see how it could have been completed any more quickly. Rashmika had the impression that blood had been spilled over every second of that shift change, for here was a hiatus during which Haldora remained unobserved. This was not quite true, she realised then, for she saw no sign of similar activity anywhere else along the caravan: the other racks were still tilted at their usual observation angles. Doubtless the shift changes were staggered so that at least one group of Observers would be sure to witness a Haldora vanishing.
Until now, it had not occurred to her that the Observers would spend any time off the rack. But here they were, filing obediently back into the caravan. She wondered if this was because there were too many Observers to go around, or whether they needed to be taken off the rack now and then for their own health.
Doubtless the sequence of distant flashes had been a coincidence, but it had served to underscore the shift change in a way that Rashmika found faintly unsettling. The last time she had been up here she had felt as if she was spying on a sacred cere-mony. Now she felt as if she had been caught in the middle of it, and had in some way marred the sanctity of the ritual.
The last of the new batch of Observers had assumed their positions on the, rack. Though they had bustled past her, there was no obvious sign that she had spoiled their timing. Now the rack itself was tilting back to the same slope as the others along the line of the caravan, angling to face Haldora.
Rashmika turned around to watch the last of the old shift vanish back into the machine. There were three left, then two, and then the last one disappeared down into the hole. Where the new shift had emerged the trapdoor was now sealed, but the other one remained open.
Rashmika looked up at the Observers on the rack. They seemed utterly indifferent to her presence now, if indeed they had really noticed her at all. Perhaps they had only registered her as a minor obstacle on the way to their duty.
She began to make her way to the open trapdoor. All the while she kept an eye on the rack, but at its present angle it would have been almost impossible for anyone on it to see her at all, even in peripheral vision, and especially not given the fact that they were wearing helmets and hoods.
She had no intention of going down the trapdoor. At the same time she was hugely curious to see what was below. A glimpse would suffice. She might see nothing, just a laddered tube leading somewhere else, perhaps to an airlock. Or she might see… well, her imagination drew a blank. But she could not help but picture rows of Observers, hooked into machines, being refreshed in time for another shift.
The caravan swayed and bumped. She steadied herself on a railing, expecting any moment that the trapdoor would be tugged shut from within. She hesitated to go any nearer. The Observers had appeared docile so far, but how would they react to an invasion of their territory? She knew next to nothing about their sect. Maybe they had an elaborate series of death penalties lined up for those who violated their secrets. A thought crossed her mind: what if Harbin had done exactly what she was about to do? She was a lot like her brother. She could easily imagine Harbin killing time by wandering around the caravan, stumbling into the same shift change, being driven by his natural curiosity to see what was down below. Another thought, even less welcome, chased the first: what if one of the Observers was Harbin?
She pushed forwards until she reached the lip of the trapdoor. It still had not closed. Warm red light spilled up from the depths.
Rashmika steadied herself again, making certain she could not fall over the edge if the caravan made another sharp swerve. She peered into the shaft and saw a simple ladder descending as far as her angle of vision allowed her to see. To look deeper, she would have to lean* further out.
Rashmika stretched, letting go of her hand-hold to make the move. She could see a little further into the hole now. The ladder terminated against grilled flooring. There was a hatch or doorway leading further into the caravan—one end of an airlock, perhaps, unless the Observers spent their entire lives in vacuum.
The caravan lurched. Rashmika felt herself tip forwards. She flailed, reaching back for the support railing. Her fingers clasped empty space. She tilted further forwards. The hole yawned bigger, the shaft suddenly appearing much wider and deeper than it had an instant ago. Rashmika started to cry out, certain that she was about to fall in. The ladder was on the wrong side; there was no way she was going to be able to grab it.
But suddenly she was still. Something—someone—held her. The person pulled her gently back from the edge of the trapdoor. Rashmika’s heart was in her throat. She had never understood what people meant when they said that, but now the expression made perfect sense to her.