Few men would have predicted that Arinbjorn's round faced (and round bellied) boy Grim would turn out to be so, well, grim. Even up through his fjortan he was a genial, if somewhat clumsy, young man. It was during those years that he entered man-hood a few years earlier than his fellow, and was branded first "Loðinbak" for his prematurely hairy torso, and then "Bjarki" sometime soon before his first raid.
It was on that raid, however, that his life took an unexpected turn.
Their target was to be a sleepy hamlet rich with booty, but their ship was run aground some distance away from their destination. Those that managed to climb ashore were cut down by something pale and ghastly that emerged from a lone stone dwelling. To Grim - waterlogged and groggy from his swim - it seemed more draugr than man. He fought, and struck the thing's head from it's shoulders as it drive its sword into his belly. He fell to the shore, a soundless death song on his lips, facing the thing's severed head.
Grim lay there on the shore for 9 days with a sword in his gut, but he did not die. Instead, he talked. He talked to himself. to the carrion birds that circled overhead, and to the head of his killer. On the morning 9th day, the head talked back.
The parley lasted until the setting of the sun, after which Grim pulled the blade from his belly, cleaved the thing's head in twain, and set about finding a way home. If Grim has ever spoken of this trip, it was not to any of his current companions.
When he finally returned to the steading, a week after the first snow of winter, he was as dour and gloomy as his namesake, exhibiting strange powers and seeing draugr wherever he went. He drank, kept poor company, and was involved in trouble more often than not. Some said he had actually died out in the wilderness - if he wasn't then he acted as if he wished for it. This lasted until the death of his brother, Njal, about which the less is said in Grim's presence the better.
Since then Grim has traveled constantly, looking for something, or possibly someone, that he does not readily discuss.