The hole had been there for years, a dark slot in the hillside above Montignac where a pine had once stood. When the tree came down in a storm, its roots tore loose a plug of earth and left an opening the village children treated as a foxes’ den. There was a story attached to it, the kind every French village keeps: that somewhere under the wooded hill called Lascaux ran a secret passage to the old manor, and that the lords of the manor had stuffed it with treasure before some long-ago trouble.
On a day in early September 1940, an eighteen-year-old apprentice mechanic named Marcel Ravidat was out on the hill with his dog, a creature he called Robot. The dog went after a rabbit, or a scent, and disappeared into the hole. Ravidat got him back, but the opening had caught his attention. He poked a stone down it and listened to it fall a long way. He went home for tools and meant to come back.
The descent
He came back four days later, on 12 September, with three others. Jacques Marsal was fifteen, a local boy like Ravidat. Georges Agniel, sixteen, was from Nogent-sur-Seine, sent south to his grandmother’s for the summer. Simon Coencas, fifteen, had come to Montignac in June with his family, Jewish refugees from the German advance, looking for safety in what was then the unoccupied zone. France had surrendered three months earlier. The country was cut in half and full of people who had fled their homes. The four boys were not thinking about any of that. They were thinking about the treasure.
They dug the hole wider until a body could fit, and Ravidat went first. He slid down a cone of loose scree, feet first into the dark, and kept sliding until the floor leveled out. The others followed. They had brought an improvised lamp — a length of pipe or a grease lamp, the kind a mechanic could rig — and by its small light they found themselves in a narrow gallery that ran on ahead of them into the hill.
They walked it. Roughly thirty metres of stone, the passage tightening, the floor uncertain underfoot. No tunnel to the manor, no treasure. Then the walls opened out, the lamp swung up, and the light fell on a herd of animals.
The Hall of the Bulls
They were bulls, mostly — huge ones, one of them more than five metres long, the largest animal figure known in cave art. Around them ran horses and stags and a single bear, painted in black and red and ochre, the bodies overlapping, the legs caught mid-stride. The boys, by the accounts they gave later, were not frightened so much as transfixed. They went home and came back, kept coming back, swearing each other to secrecy and charging the friends they eventually let in a small fee to look. The secret lasted only a few days.
What they had walked into is now called the Hall of the Bulls, the antechamber of a painted system that runs deep into the hill. In all, the cave holds something on the order of six hundred paintings and fifteen hundred engravings — nearly two thousand figures of animals, signs, and a single, strange human form. The dating has shifted over the decades, but the paintings are roughly seventeen thousand years old, made in the Magdalenian, when hunters worked this valley in the cold tail of the last Ice Age. The day the lamp lit them, no human eye had seen them in all that time.
The next day Ravidat went back to the deepest part and lowered himself eight metres down a shaft. At the bottom was the cave’s one picture of a person: a stick figure of a man, apparently falling, in front of a disemboweled bison, a rhinoceros walking away. It is the most argued-over scene in prehistoric art, and the boys found it by climbing into a pit on a rope.
The men who came to look
Word reached their schoolmaster, Léon Laval, who came up the hill within the week and crawled in, terrified the boys would damage the floor. Then came the authority: Henri Breuil, the abbé who had spent a lifetime on cave art and was the closest thing the field had to a pope. Breuil reached Lascaux on 21 September, nine days after the boys, and pronounced it real and extraordinary. He began the sketching that would make the cave famous. The phrase that stuck to it — the Sistine Chapel of prehistory — was already in the air.
The four discoverers did not all stay. Agniel’s summer ended and he went home north. Coencas was forced back to Paris within weeks: a German decree at the end of September ordered all Jews to register, and the unoccupied zone was no refuge for long. He was arrested with his family in 1942 and interned at Drancy, the camp outside Paris that fed the trains east. The Red Cross got him and his sister out. Other members of his family were deported and killed at Auschwitz. He survived the war and lived until 2020, the last of the four.
Ravidat and Marsal stayed with the cave. Through the winter of 1940 the two of them camped at the entrance in a hut, guarding the hole against anyone who might wreck what was inside. When Lascaux opened to the public after the war, both became its guides. Marsal made it his life’s work.
Loved to death
The cave opened on 14 July 1948, and people came in numbers no one had planned for — as many as twelve hundred a day, breathing, sweating, exhaling carbon dioxide into a sealed chamber that had held a stable climate for seventeen thousand years. The air changed. By 1960 the curator was finding green spots on the walls; within two years the algae had spread, a contamination the French called the maladie verte, the green sickness, and behind it came a creeping film of white calcite. The paintings that had survived the Ice Age were being dissolved by the people who came to admire them.
In 1963 André Malraux, the writer who served as de Gaulle’s culture minister, ordered Lascaux closed. The green sickness was halted and reversed; the cave was sealed and kept under guard, its climate nursed by instruments. To give the public something, France built a replica two hundred metres away — Lascaux II, a concrete shell painted to match the original, opened in 1983. It draws the crowds now. The real cave stays shut, entered only by the conservators who monitor its slow breathing.
Jacques Marsal stayed its guardian until he died in 1989, watching over a hole in a hillside he had dropped into as a boy looking for buried gold. He never found the tunnel to the manor. What he found instead was older than the manor by sixteen thousand years, and it had been waiting in the dark the whole time, for a dog and four teenagers and a homemade lamp.