the audience. It belongs to an intense young man with squared-off glasses and a severe fringe.
He asks: “How can you be so sure?”
Safa grimaces. She hates being asked questions.
Rana puts down her tool and listens very carefully. Somewhere in the museum there was a loud bang, as of a door being slammed. She is silent for at least a minute, but when no further sound comes she resumes her labors, filling the room with the repetitious scratch of diamond-tipped burr against corroded metal.
Then another sound comes, a kind of fluttering, animal commotion, as if a bird is loose in one of the darkened halls, and Rana can stand it no more. She leaves her desk and walks out into the basement corridor, wondering if someone else has come in to work. But the other rooms and offices remain closed and unlit.
She is about to return to her labors and call Katib’s desk, when she hears the soft and feathery commotion again. She is near the stairwell and the sound is clearly coming from above her, perhaps on the next floor up.
Gripping the handrail, Rana ascends. She is being braver than perhaps is wise—the museum has had its share of intruders, and there have been thefts—but the coffee machine is above and she had been meaning to fetch herself a cup for at least an hour. Her heart is in her throat when she reaches the next landing and turns the corner into the corridor, which is as shabby and narrow as any of the museum’s non-public spaces. There are high, institutional windows on one side and office doors on the other. But there is the machine, standing in a pool of light two doors down, and there is no sign of an intruder. She walks to the machine, fishing coins from her pocket, and punches in her order. As the machine clicks and gurgles into life, Rana feels a breeze against her cheek. She looks down the corridor and feels it again: it’s as if there’s a door open, letting in the night air. But the only door should be the one manned by Katib, on the other side of the building.
While her coffee is being dispensed Rana walks in the direction of the breeze. At the end the corridor reaches the corner of this wing and jogs to the right. She turns the bend and sees something unanticipated. All along the corridor, there is no glass in the windows, no metal in the frames: just tall blank openings in the wall. And there, indeed, is a fluttering black shape: a crow, or something like a crow, which has come in through one of those openings and cannot now find its way back outside. It keeps flinging itself at the wall between the windows, a gleam of mad desperation in its eyes.
Rana stands still, wondering how this can be. She was here. She remembers passing the machine and thinking she would take a cup if only she were not already staggering under her boxes and computers.
But there is something more than just the absence of glass. Is she losing her mind, or do the window apertures look narrower than they used to do, as if the walls have begun to squeeze the window spaces tight like sleepy eyes?
She must call Katib.
She hurries back the way she has come, forgetting all about the coffee she has just paid for. But when she turns the bend in the corridor, the machine is standing there dark and dead, as if it’s been unplugged.
She returns to the basement. Under her feet the stairs feel rougher and more crudely formed than she remembers, until she reaches the last few treads and they start to feel normal again. She pauses at the bottom, waiting for her mind to straighten itself out.
Down here at least all is as it should be. Her office is as she left it, with the lights still on, the laptops still aglow, the gearwheel still mounted on its stand, the disemboweled Mechanism still sitting on the other side of the desk.
She eases into her seat, her heart still racing, and picks up the telephone.
“Katib?”
“Yes, my fairest,” he says, his voice sounding more distant and crackly than she feels it should, as if he is speaking from halfway around the world. “What can I do for you?”
“Katib, I was just upstairs, and…”
But then she trails off. What is she going to tell him? That she saw open gaps where there should be windows?
“Rana?”
Her