Billions died in less than twenty-four hours.

William Price was one of the first.

Price had been out of bed for less than ten minutes when it began. He had been standing in the kitchen when he’d felt the first pains. By the time he’d reached his wife in the living room he was almost dead.

The virus caused the lining of his throat to dry and then to swell at a remarkable rate. Less than forty seconds after initial infection the swelling had blocked his windpipe. As he fought for air the swellings began to split and bleed. He began to choke on the blood running down the inside of his trachea.

Price’s wife tried to help him, but all she could do was catch him when he fell to the ground. For a fraction of a second she was aware of his body beginning to spasm but by that point she had also been infected. By that point the volume of oxygen reaching her lungs had reduced to less than ten per cent of her normal oxygen requirement.

Less than four minutes after Price’s initial infection he was dead. Thirty seconds later and his wife was dead too. A further minute and the entire street was silent.

I was almost home by the time I knew that it had happened.

It was still early – about half-eight I think – and I’d been out of the house since just after four. Looking back I was glad I hadn’t been home. It was bad enough seeing Sarah and Gemma lying there after it had happened to them. Christ, I wouldn’t have coped seeing it get them both. I just couldn’t have stood seeing them both suffer like that. I couldn’t have done anything for either of them. It hurts too much to even think about it. Better that they were gone and it was over by the time I got home.

I’d been out on a maintenance call at Carter and Jameson’s factory five miles north of Billhampton. I usually ended up going there once or twice a month, and usually in the middle of the night. The bastard that was in charge of the place was too tight to pay for new machinery and too bloody smart to get his own men repairing the system when he knew that he could call us out. Didn’t matter what went wrong or when, he always got us out. He knew the maintenance contract better than I did.