`It was strange,' the girl later said. `I stopped seeing them as dead bodies. It was as if they'd become something else, parts of the trees themselves.’

Then the explosion, smoke and dust billowing from the church. A moment's silence, as though a vacuum had been created in the world, then screams, followed immediately by machine-gun fire. And when it finally stopped, she could still hear it. Because it wasn't just inside the church: it was in the distance, too.

Prudhomme's barn.

When she was finally found – by people from surrounding villages – she was naked except for a shawl she had found in a trunk. The shawl had belonged to her grandmother, dead the previous year. But she was not alone in escaping the massacre. When the soldiers had opened fire in Prudhomme's barn, they'd aimed low. The first row of men to fall had been wounded in the lower body, and the bodies which fell on them shielded them from further fire.

When straw was strewn over the mound and set alight, they'd waited as long as they could before starting to claw their way out from beneath, expecting at any moment to be shot. Four of them made it, two with their hair and clothes on fire, one dying later from his wounds.

Three men, one teenage girl: the only survivors.

The death toll was never finalised. No one knew how many visitors had been in Villefranche that day, how many refugees could be added to the count. A list was compiled of over seven hundred names, people who had most likely been killed.

Rebus sat at his desk and rubbed his eyes with his knuckles. The teenage girl was still alive, a pensioner now. The male survivors were all dead. But they'd been alive for the Bordeaux trial in 1953. He had summaries of their evidence. The summaries were in French. A lot of the material sitting on his desk was French, and Rebus didn't speak French.