You never knew when one might fail, and if that happened you were dead. If the poison gases did not give you a heart attack by showing you your worst fears, the disease spores would clot in your lungs, and if the disease spores didn’t choke you to death on your own mucus then the airborne moulds would fill the inside of your lungs with grey fur. There were at least a dozen unpleasant ways to die on Loki that did not involve being shot, bayoneted or otherwise slain by heretics and there were plenty of fanatical bloodthirsty unbelievers to go around, too. The planet seemed to have entered into a conspiracy with the forces of darkness to slay the Emperor’s soldiers. I’ve been on many such since I joined the Guard.

Anton rose up out of the gloom, tall and gangly and weather-beaten. The rebreather covered the lower half of his face but from the way the old scar across his forehead writhed I could tell he was grinning at me. That he was still capable of such idle good humour after all these years of campaigning was testimony to his innate cheerfulness. Or his innate stupidity. It was sometimes hard to say. ‘You counting your treasures, are you?’

He was respectful enough when there were others around, but with no troops about we stopped being sergeant and corporal and were just men who had fought and bled for each other over the three decades since we had left Belial.

Anton had not even bothered to maintain his secondary rebreather. He was careless that way, or counting on me to bail him out most likely. He walked a little along the wooden duckboard. A thin layer of mud sucked at his boots. The sound seemed to disturb him, so he stopped walking for a moment and studied the muck thoughtfully.

‘Somebody has to make sure there’s enough to go round,’ I said. ‘You never know when another gas attack will come.’

‘I don’t know why they bother,’ Anton said. He looked out into no-man’s-land and shook his head at the folly of the generals. ‘We all have rebreathers, don’t we?’

Like me, Anton had grown up on Belial, an industrial hive. Wearing rebreathers was second nature to us, but it wasn’t to everybody. Many of the newcomers had come from agri worlds and feral worlds and the sort of beautiful friendly places where the air was always breathable. Hard to imagine but true.

‘We all have them and we sometimes wear them,’ I said. ‘And they sometimes work. The enemy is playing the odds. And anyway, you are missing the point. The gas is not there to kill us, it’s just to add to the general level of misery.’

‘I heard a medical adept say that you don’t need to breathe in some of the gases,’ said Ivan, rubbing at the metal-covered half of his face and then running the artificial fingers of his bionic hand over his prosthetic jaw. ‘They just need to touch your skin. That’s why we’re supposed to stay covered up all the time.’

‘Genius,’ said Anton. ‘Make sure we all get trench foot and lice and shuttle-bugs. I think Leo has it right. They are adding to the misery. I mean, this is the Imperial Guard – misery is what it’s all about.’

Somewhere out in the vast field of mud, barbed wire, shell-holes and disease-filled sewage ponds, a man was begging for someone to come and kill him.