The summery of fourth story in The Lurking Fear, named The Horror In The Eyes:
Returning to Jan’s grave, he finds that the burrow he previously fell into has completely caved-in, and all traces of what he had found there are gone. Instead, he decides to investigate the strange mounds which surround the mansion, and its connection to the creature. While observing from afar, he realizes that the mounds are in fact tunnels made by the creatures, and that the entire hillside along with the mansion must be honeycombed with monstrous passages. Struck by mania, he digs his way into the one of the tunnels through the mansion’s cellar, and finds a catacomb-like system of both nests and tunnels. As another thunderstorm approaches, the narrator hides, and sees countless creatures emerge from the ground. The narrator then sees one of the weaker members of the grotesque mob get attacked and eaten by one of its compatriots. He shoots one of the creatures as it straggles behind the rest of the pack, using a clap of thunder to disguise the muzzle blast. Soon, upon closer inspection, he notices the creature’s heterochromia and realizes that the deformed, hair-covered creature is in fact a member of the Martense family, who have devolved into hideous ape-like beasts thanks to centuries of isolation and inbreeding. The narrator remembers nothing more, until he wakes up some time later in a nearby village. Thoroughly traumatized by his experiences, the narrator has the mansion, surrounding woods, and hillside destroyed with explosives, but is never able to heal his mind from the horrors that he experienced, always fearing that one of the Martense creatures may have survived.
You can tell where this thing’s inspiration came from.
Returning to Jan’s grave, he finds that the burrow he previously fell into has completely caved-in, and all traces of what he had found there are gone. Instead, he decides to investigate the strange mounds which surround the mansion, and its connection to the creature. While observing from afar, he realizes that the mounds are in fact tunnels made by the creatures, and that the entire hillside along with the mansion must be honeycombed with monstrous passages. Struck by mania, he digs his way into the one of the tunnels through the mansion’s cellar, and finds a catacomb-like system of both nests and tunnels. As another thunderstorm approaches, the narrator hides, and sees countless creatures emerge from the ground. The narrator then sees one of the weaker members of the grotesque mob get attacked and eaten by one of its compatriots. He shoots one of the creatures as it straggles behind the rest of the pack, using a clap of thunder to disguise the muzzle blast. Soon, upon closer inspection, he notices the creature’s heterochromia and realizes that the deformed, hair-covered creature is in fact a member of the Martense family, who have devolved into hideous ape-like beasts thanks to centuries of isolation and inbreeding. The narrator remembers nothing more, until he wakes up some time later in a nearby village. Thoroughly traumatized by his experiences, the narrator has the mansion, surrounding woods, and hillside destroyed with explosives, but is never able to heal his mind from the horrors that he experienced, always fearing that one of the Martense creatures may have survived.
You can tell where this thing’s inspiration came from.