I did my best to hide the fact that I had seen the numbers and guessed their meaning. Grey oblivion enclosed my panicking mind on all sides, squeezing in. I pulled the chair from under my desk and sat down heavily. Polly was no longer looking at me. Instead she was staring fixedly out of the window, jaw tense, clipboard clutched to chest, being scrupulous about not looking at me. The grey closed in, appearing in my peripheral vision, cutting off my oxygen. I hit the space bar to rouse my computer and that small action felt like an immense drain on my resources. Fainting was a real possibility. No air. Horrible implications were spreading outwards from what I had seen, a thickening miasma of betrayal and threat. Firing an employee was cheaper than making them redundant – perhaps that was Polly’s game. Perhaps she was collecting a dossier against me to spare someone else, a friend, an ally: Freya? Kay? Mohit? But of those names, none was more clearly on the axe list than mine. If I was already doomed, and they could save themselves that redundancy payment into the bargain …

Unread emails. Hundreds of new tweets. Fifty new Tumblr posts. I looked at the latter, not able to face the clamour of Twitter, and it was a good choice – calming. Attractive concrete ruins. Unusual bus shelters in Romania. Book covers from the 1970s. Silent gifs of pretty popstars. New Yorker cartoons. Feel-good homilies and great strings of people agreeing with heartfelt, bland statements against racism and injustice.

But the smoke was there, too. A camera-phone photograph on the blog of another magazine, showing the same plume we could see but over a different roofline. A much better photograph from the feed of Bunk, F.A.Q.’s company, taken from a higher angle and showing the column’s base, orange destruction under buckling industrial roofs, in a necklace of emergency-service blue lights.