This one is a classic creepypasta. It is also known as The Portraits. What follows is a pasta by the same name, yet not as well-known.
The First PastaThere was a hunter in the woods, who, after a long day hunting, was in the middle of an immense forest. It was getting dark, and having lost his bearings, he decided to head in one direction until he was clear of the increasingly oppressive foliage. After what seemed like hours, he came across a cabin in a small clearing. Realizing how dark it had grown, he decided to see if he could stay there for the night. He approached, and found the door ajar. Nobody was inside. The hunter flopped down on the single bed, deciding to explain himself to the owner in the morning.
As he looked around the inside of the cabin, he was surprised to see the walls adorned by several portraits, all painted in incredible detail. Without exception, they appeared to be staring down at him, their features twisted into looks of hatred and malice. Staring back, he grew increasingly uncomfortable. Making a concerted effort to ignore the many hateful faces, he turned to face the wall, and exhausted, he fell into a restless sleep.
The next morning, the hunter awoke—he turned, blinking in unexpected sunlight. Looking up, he discovered that the cabin had no portraits, only windows.
The Second Pasta
In the fall of 1998, a woman's left hand was found buried in a remote portion of New England's Great North Woods. The ensuing investigation quickly centered on a nearby abandoned cabin which was completely unknown both in official records and among the local population, and whose walls were covered partially with an English-language rant about a “woman with no face” and partially with a still-undeciphered script vaguely reminiscent of the Basque language.
After several fruitless months, the still-unsolved case was closed, leaving a number of questions unanswered: why a later search revealed only undisturbed, decade-old forest where the cabin had once been, why several police officers who spent time inside the cabin reported disturbingly vivid nightmares involving cannibalism or self-mutilation – and why many of those nightmares occurred long before the hand was discovered.