The man, who’s only known as Frank on his social media pages, is believed to have visited the Waldeck Mine in Arizona to document the area while reviewing a new flashlight.
In a video posted to his YouTube channel, Exploring Abandoned Mines, Frank explored the 150-year-old mine with nothing but his camera and a torch.
In the clip, which has since gone viral online, Frank claims to hear creepy whispers while exploring a particular tunnel in the mine.
“Do you hear that?” he asked in the video.
“Is that wind?”
“I don’t know what that is. It doesn’t sound like wind.”
Commenters on the YouTube video analysed the sounds and were apparently able to decipher what was being whispered.
“It’s saying, ‘Do you see me. I’m a shadow in the shadows’,” YouTube user Allen Sokos wrote.