She had never told us what happened that night. Geri and I tried a couple of thousand times to catch her off guard—asked when she was half asleep in front of the telly, or daydreaming out the car window. All we got was that flat “I had bad dreams,” and her blue eyes skittering away to nothing.

When she was thirteen or fourteen we started to realize—gradually, and without any real surprise—that there was something wrong. Nights when she sat on my bed or Geri’s talking full speed until dawn, revved up into a frenzy about something we could barely translate, raging at us for not caring enough to understand; days when the school rang to say she was staring and glazed, terrified, like her classmates and her teachers had turned into meaningless shapes gesturing and jabbering; fingernail tracks scabbing on her arms. I had taken it for granted, always, that that night was the embedded thing corroding at the bottom of Dina’s mind. What else could have done it?

There isn’t any why. That dizziness took hold of me again. I thought of balloons unmoored and soaring, exploding in the thinning air under the pressure of their own weightlessness.

Footsteps came and went in the corridor, but none of them paused outside my door. Geri rang twice; I didn’t answer. When I could stand up, I blotted the rug with kitchen roll until I had soaked up as much of the wine as I could. I spread salt on the stain and left it to work. I poured the rest of the wine down the sink, threw the bottle in the recycling bin and washed the glasses. Then I found Sellotape and a pair of nail scissors and sat on my living-room floor, taping pages back into books and trimming the tape to within perfect hairsbreadths of the paper, until the heap of wrecked books was a neat stack of mended ones and I could start putting them back on my shelves, in alphabetical order.

15

I slept on the sofa, to make sure that even the quietest turn of a key in the lock would wake me. Four or five times that night I found Dina: curled asleep on my father’s doorstep, shrieking with laughter at a party while someone danced barefoot to wild drums; wide-eyed and slack-jawed under a glassy film of bathwater, fan of hair swaying. Every time I woke up already on my feet and halfway to the door.

Dina and I had fought before, when she was on a bad one. Never like this, but every now and then something I thought was innocuous had sent her whirling out in a fury, usually throwing something at me on her way out the door. I had always gone after her. Mostly I caught her within seconds, dawdling outside for me. Even the few times when she had given me the slip, or fought me and screamed till I backed off before someone called the police and she landed in a locked ward, I had followed and searched and phoned and texted till I got hold of her and coaxed her back to my place or Geri’s. That was all she wanted, deep down: to be found and brought home.