Unless you are a student of Japanese folk lore, you probably haven't heard of this one. I know I hadn't before I found this article at Listverse! Good source for interesting stuff!
Invisible Monster Attacks in Japan
Around 1890, surreal events began taking place in Japan, mainly in the area of Kamakura, Yamanouchi Ken. While scientists at the time attempted to explain the phenomenon, local villagers were convinced the cause was due to an invisible monster.
Men walking in fields, at home, or in the open would suddenly feel a strong wind and be knocked over. When they stood, the victims found wounds in their legs. The injuries were narrow slits approximately 1”-1½” long and about an inch deep, and had no apparent cause. At first painless and bloodless, after about a half hour the wounds began to bleed and the pain intensified. It was also reported that the injuries were very difficult to heal.
Scientists studying the events theorized the men’s wounds were caused by an inexplicable loss of atmospheric pressure creating a temporary vacuum. However, the stricken men and other locals believed the wounds were the work of a legendary y?kai called kamaitachi, or the “sickle weasel”—a supernatural creature with sharp, sickle-like claws who traveled in a whirlwind (sometimes described as traveling in trios) and attacked humans so quickly, they couldn’t be detected with the naked eye. The kamaitachi was said to use a medicine on the inflicted wounds to temporarily halt bleeding and pain.
The rash of attacks eventually ceased, or at least ceased being reported by newspapers at the time. No absolute explanation has ever been put forward.
You have to admit that this monster is just a tad different than the others we talked about. Strange, don't you think?
We better have our coffee inside this morning, It's trying to rain again and it's just a tad cooler!