“My name is Dr Abbey,” he said. “I’ve been sent by HQ.”

I never asked to check his papers. Matron was so relieved, she babbled.

Sister Beatrice had to move from her room. A doctor needed better quarters than a nurse. She, being senior to me and Helene, immediately claimed ours. The window was small and let in the winter air, but it was in a good position on the south side of the building and there had been no rats seen for nearly three months.

Me and Helene was pushed into a tiny, lime-washed, spider-scuttling den in the eastern corner of the house. We dragged my bed on its side through the corridors, shuffling in socks, trying to keep the scraping of metal on wood from waking the patients below. In whispers we grumbled about this new intruder on our routines, and Helene wrote a letter to her Ma saying it were all terrible and she wanted to come home, but she never sent it, and I put my head down on my pillow with resentment in my heart, and slept badly, and woke for a moment frightened, and was surprised I could still be scared.

When I went down for the afternoon shift, I found Dr Abbey about his rounds, drifting from bed to bed with the same expression on his face for every patient, whether they were hopeful of recovery or waiting for death. He did not smile, did not frown, but with every man he stopped, looked into their eyes as if he were staring down the barrel of a gun, asked a few questions, nodded at a couple of replies, then moved on without a word.

In this way – cold, almost bored – he was just another typical bloody doctor. On the battlefield the surgeons only saw flesh, never the men they cut open. We were all getting good at not seeing eyes. It were the sisters who carried the bodies to the carts, stripped the beds, put the unfinished letters to family in a bag, trimmed off the corners that were stained with blood. We picked up the limbs the surgeons cut and put them in a box: an arm without a hand; a leg hanging together by a stitch of muscle at the knee. We cleaned brain off the knife and picked out bone from between the teeth of the saw, held the boys down when the ether ran low.

When I first came to the battlefield, I would listen to the cannon and think I heard the end of the world.

There was one other doctor at the house. Dr Nicolson had been sent to us at the Jardin du Pansée, six miles back from the line, after being caught inhaling ether. Matron kept the cupboards locked tight when Dr Nicolson did his rounds. The arrival of Dr Abbey at last let Nicolson indulge in his love of Indian gin, shipped to him by his mother every six weeks via a small Portuguese man who he called “cousin” and who had not a word of English. When the gin came late, he would stand vigil by the garden gate; if it came early, he might share the smallest of drams, and then look immediately regretful as we drank it down, and hide the bottles after.