The legendary creature, Storsjöodjuret, has fascinated people for hundreds of years. The phenomenon has made a deep impression on the people around the lake and there are a number of people who don´t doubt its existence for a minute. Storsjöodjuret has an ancient lineage and there is even an account of its mysterious birth. The written statements on Storsjöodjuret in lake Storsjön date far back. The first one is from 1635. A person, Mogens Pedersen from Herdal, wrote down a legend. It tells of two trolls who were boiling a mixture in a large kettle on the shore of the lake. When they had boiled the mixture for years and years, the contents of the kettle began to groan and wail and there was a loud bang.  "A strange animal with a black serpentlike body and a cat-like head jumped out of the kettle and disappeared into the lake. The monster enjoyed living in the lake, it grew unbelievably large and terrorised the people living on the shores of the lake. After some time it extended all the way around the island Frösön, and could bite its own tail." The northernmost runestone in Sweden is on the island Frösön in lake Storsjön, Jämtland. There is a serpent on the stone, a rune scripture and a cross. It is said that under this stone lies a terribly large serpent's head with a body that stretches across the lake Storsjön to the villages Knytta and Hillesand where the tail is buried (a distance of about 2,5 kilometres). According to the ferryman and his wife, as well as many others in the 17th century, the rune stone was knocked down and broken in two because no one could journey across the lake in peace. For as long as the stone lay on the ground many strange things happened on the water. It was obvious that the disturbance originated from the broken rune stone and so it was repaired and raised again. Storsjöodjuret has continued to appear every now and then. Until today there are hundreds of documented stories of witnesses, hunting expeditions have been made and books have been written.