This has to be one of the strangest and scariest inscriptions found on any tombstone in any graveyard, it reads "Murdered by Human Wolves." That's right, this century-old grave marker details the death of a woman allegedly killed by werewolves. Even worse, this headstone was once in a cemetery in Oklahoma.

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Unfortunately, someone stole the grave marker a few years ago and it remains missing to this day. The grave site of Katherine Cross is in a cemetery located in Seminole County in Konawa, OK. The original tombstone read: Katherine Dau. of J.T. & M.K. Cross Mar. 13, 1899 Oct. 10, 1917 Murdered by Human Wolves.

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Click here to see the original headstone at the grave of Katherine Cross. Her family has since replaced the marker after it was stolen back in 2016. Needless to say, the life and death of Katherine Cross have been investigated by not only law enforcement but also paranormal researchers and ghost hunters.

Hit play on the video below to learn more about the grave of Katherine Cross

The haunting and mysterious epitaph "Murdered by Human Wolves" that was on her headstone has been debated and argued since her death in 1917. It's become an Oklahoma ghost story and urban legend over the years that continues to be told today. So what's the real or true story behind those terrifying words?

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The legend of Katherine Cross being attacked and killed by werewolves has been around for a century plus. The story goes that her body was found mangled and partly eaten. However, the truth is the wolves that murdered her were actually just human beings. It wasn't a mythical monster, it was a monstrous doctor.

The headstone for Katherine Cross was stolen from the Konawa Cemetery a few years ago

Sadly Katherine Cross was killed due to a criminal operation that was allegedly performed by Dr. A.H. Yates and his assistant Fredrick O'Neal. Dr. Yates was arrested, and charged with her death. His assistant in the botched operation, Mr. O'Neal was never charged. Both men were involved in a previous death of a patient that occurred about six months before Katherine. These 2 men were performing illegal operations on women.

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The "Human Wolves" mentioned in the epitaph were Yates and O'Neal, or at least most people say so. Others think she was killed by a werewolf or the dreaded Oklahoma Dogman another Sooner State urban legend. Katherine Cross was even the subject of the horror novel "Murdered by Human Wolves" by Steven Wedel.

Watch the video below to see 20 werewolves caught on camera

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Gallery Credit: Don "Critter" Brown

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Gallery Credit: Don "Critter" Brown

Top 10 terrifying towns & creepy cities in Oklahoma

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Gallery Credit: Don "Critter" Brown

The top 10 Oklahoma pumpkin patches & corn mazes

If you're looking for a place to go for a little fall family fun you're in luck! Oklahoma is home to some of the biggest and best pumpkin patches and corn mazes in the U.S. People from all over travel to the Sooner State every fall to visit these incredible farms. Not only do they offer pumpkin patches along with corn and hay mazes, they also have all kinds of other activities like petting zoos, rides, arts & crafts, food, games, haunted attractions, and a whole lot more. So no matter what your idea of fall fun is, you can find it all in one place!

Gallery Credit: Don "Critter" Brown

The Dreadful Downtown Hauntings of Lawton, OK.

When it comes to ghost tales and hauntings Lawton, Fort Sill has more than a few scary stories to tell. The most active hauntings and paranormal/supernatural occurrences that have been reported seem to be centered around downtown Lawton. If you've lived here a while I'm sure you've heard a few of these terrifying tales yourself. If not check out the photo gallery below of the dreadful downtown hauntings of Lawton, OK.

Gallery Credit: Don "Critter" Brown