In the spring of 1923, deep in the Ozarks, a surveyor named Renfield Vosburg was hired to walk the boundary of a widow's property. The land sat at the foot of a ridge locals called Sorrowback, a stretch of rough limestone country south of a town called Hollowbrook.
Vosburg was a quiet man, a widower who had moved to the hills two years earlier after his wife died of a fever. He kept to himself and worked freelance jobs for small landowners. On the third day of the survey, he pushed through a stand of cedar and found something unexpected.
It was a cave mouth, not a shallow shelter cave, but a real opening in the rock, roughly eight feet wide, slanting down into the hillside at a 30-degree angle. Cold air poured out of it. The air smelled of wet iron and something else, something faintly sweet, like a soft apple.
Vosburg did not mention the cave in his report to the widow. He was not sure it belonged on her property, and the federal land to the north was nobody's land. A week later, he packed a rucksack with two carbide lamps, rope, a crowbar, a sketchbook, food, and a revolver that had belonged to his father. He went back.
His journal records that he descended about 60 vertical feet before the passage opened into a roughly circular chamber. There were three other passages leading out of it. Two were natural. The third was not.
The third passage was rectangular, a clean, squared opening in the rock, about six feet tall and four feet wide. The edges were straight. Vosburg found tool marks on the stone, small and curved, like someone had scraped the rock away in thumbnail-sized arcs over a long period of time.
He went into the rectangular passage for about 200 feet, then turned around and went home. For three days, he wrote nothing in his journal. When he started writing again, he described a recurring dream. In the dream, he stood in a long stone hall lit by something he could not see, with figures sitting along the walls. He knew that if he walked past them, they would stand up behind him and follow.
He returned to the cave on the 10th of April. He went further this time, marking the walls with chalk every 20 feet. The rectangular passage went on for what he estimated was a quarter mile before opening into a second chamber.
The second chamber was not natural. The walls were dressed stone, cut blocks fitted without mortar, with joints so close he could not slide a knife blade between them. The ceiling was vaulted, and there were empty niches set into the walls at regular intervals. The air in this chamber was warmer than the air in the passage, which made no sense at all.
He went on. A third chamber was reached through another rectangular passage, this one shorter, about 100 feet. It was a perfectly round room, roughly 60 feet across, with a domed ceiling. The dome had been carved with something that looked like writing, but the lines were too thin and too tangled to read.
In the center of the room was a pit, round, about eight feet across, cut into polished stone. Vosburg held his lamp over it. The light did not reach the bottom. He dropped a piece of broken stone into the pit and counted. He stopped counting at 42 seconds. He never heard it hit.
He sat down a few yards from the pit and wrote in his journal. He argued with himself about what he had heard, or not heard. Then he wrote one more thing. While he had been sitting there with the lamp turned low, he had heard something move at the bottom of the pit. A long, slow, dragging sound, like a heavy sack being pulled across a wet floor.
He left the cave and came out into the spring sunlight on the morning of the 11th of April. A local trapper named Cassander Brule came across him that afternoon, sitting on a fallen log about a mile from the cave, white as the bark. Brule said Vosburg's eyes had a look he had seen once before on a man who had walked out of a snowstorm after three days.
Vosburg asked Brule if he had ever heard stories about a place under Sorrowback Ridge, a place the Osage had warned the early settlers about. Brule said yes. His grandfather had once pointed at the ridge and said, "That mountain's hollow and don't you ever go looking for what's hollow about it."
Vosburg wrote a long entry that night. He wrote that he was going to leave the cave alone. He wrote that whatever had cut those passages and built those rooms had done it for a reason, and that the reason was almost certainly to keep something in, not to let people through. He bought 20 sticks of dynamite from a quarry foreman under a false name.
For a week, he sat with the dynamite. His journal entries were short, mostly about practical things. But once, in the middle of one entry, he wrote a single sentence in pencil, very lightly. "I can still hear the dragging sound."
On the 18th of April, he went back to the cave. He did not take the dynamite. He took the journal, the revolver, a single lamp, and a length of rope. He left a note on his kitchen table addressed to Othmar Krick, the postmaster, asking him to come around the cabin in two days if he had not heard from him. He drew a small map on the back of the note.
Krick rode out to the cabin on the 20th with two other men. They found the cabin empty and Vosburg's coat still hanging by the door. A man does not leave his coat behind in April in the Ozarks, Krick later said.
The three men rode up to the cave. The preacher with them, a man named Quill, would not go in. He said he would wait at the entrance. Krick and the other man, Wendell Braille, lit lanterns and started down.
They followed the chalk marks through the slanting passage and the round chamber. They saw the rectangular cut. Krick later wrote that the air changed when they crossed into it, like walking from one room of a house into another with a different temperature, smell, and sound.
They reached the second chamber, the one with the dressed stone walls. They did not go on. Before they turned around, they called out Vosburg's name. Krick wrote that there was a long rolling echo, and under the echo, something else. A sound he could not describe, except to say that it sounded like an answer. Not a voice, but something that had heard them and was responding in its own way.
They left the cave. A search party went in three days later with 30 men and four hounds. The hounds would not go past the round chamber. They sat at the entrance to the rectangular cut and whined, refusing to move.
The men went on without them. They reached the third chamber and looked into the pit. They lowered a lantern on a rope, letting out 300 feet of rope. The lantern was still swinging in the dark below them. They could not see the bottom. They did not hear the dragging sound.
Krick later said that was the worst part. He had been hoping to hear it, because if they heard it, then Vosburg had not been mad. And if they did not hear it, then either Vosburg had been mad, or the thing that made the sound was being quiet because they were there.
They searched for three hours. They found no sign of Vosburg. They found his lamp, sitting on the floor of the third chamber near the edge of the pit, the carbide burned out. They found his revolver beside it. All six chambers had been fired. There were no bullet marks on the walls, ceiling, or floor.
Two weeks later, Vosburg's journal appeared on the front step of Krick's post office, wrapped in clean oilcloth, with no note and no explanation. Krick read it twice, then put it in a tin box behind his counter. He did not show it to anyone for 19 years.
The cave was sealed in the fall of 1923. Krick and three other men hauled the dynamite Vosburg had bought up to the cave mouth. The preacher Quill prayed over the entrance. The charges brought the whole front of the slant down in a roar that could be heard in Hollowbrook. The hillside dropped 15 feet, burying the cave mouth under tons of limestone.
The widow Asplin sold her land the following spring for half what it was worth and moved to Kansas. She told the buyer there was a piece of the property he should not walk on, the north ridge near the boundary line. She said the deer did not go there, and a man should pay attention to where the deer do not go.
The cave is still sealed. By the early 1960s, nobody could find the entrance. Some folks said that proved it had never been real, that Vosburg had been a strange, grieving man who walked into the woods one day and never came back. Other folks said the woods had just taken the place back. The mountain had swallowed its own wound.
Othmar Krick lived until 1961. In the last year of his life, his nephew Wendell came to take care of him. The nephew said his uncle talked sometimes in his sleep, calling out names. Renfield's name was one of them.
One night in the spring of '61, about a month before Othmar died, the nephew found him sitting up in bed, staring at the window. The window was closed, the curtain drawn. The nephew asked what was wrong. Othmar said very quietly that he could hear the dragging sound.
Othmar died three weeks later. Going through his things, the nephew found the tin box. The journal was in it, wrapped in the same oilcloth it had arrived in nearly 40 years before. There was a letter with it, written in Othmar's careful hand.
The letter said that everything in the journal was real. That Othmar had been into the cave and had heard what Renfield had heard, and had spent the rest of his life trying to forget it and had failed. The letter said the cave was sealed and should stay sealed, and that if anyone reading the letter ever felt the urge to go looking for it, they should pray instead.
The nephew gave the journal and the letter to a historian out of Springfield. The historian wrote an article for a small regional magazine in 1963. A copy of it sits in the Missouri State Archives in a folder marked Ozarks Folklore Miscellaneous. The journal itself is in private hands and has not been displayed publicly since 1971.
The historian, a man named Ovid Clouse, did one piece of research the article does not mention. He found Cassander Brule, the trapper, in a nursing home in Joplin in the spring of 1963. Brule was 91 years old, mostly deaf, but his mind was clear.
Brule confirmed most of the story. There was only one detail he changed. He said that when he had met Vosburg on the trail after the second trip into the cave, Vosburg had told him something that did not make it into the journal.
Vosburg had told him that down in the third chamber, in the few minutes he sat by the pit before he heard the dragging sound, he looked up at the dome of the ceiling. In the carved lines he had not been able to read, he saw one shape he recognized. He saw his own name carved into the stone, in a hand that was not his own.
Brule said Vosburg asked him very seriously whether he believed a man could be expected by a place, whether a place could know a name before the man arrived to bring it. Brule said he did not know how to answer. After a while, Vosburg stood up and walked off down the trail toward his cabin. That was the last Brule ever saw of him.
The historian wrote that detail down in a separate notebook. The notebook is also in the state archives, in the same folder.