My Sixty Days as a Viking Slave

This story is avout a kid, Fred in his freshman year of highschool, who gets sucked into a different world. Well i guess he was more of yanked into a differint world, with four other guys. One of them being his friend and the other three being bullys. In this storry fredrick will have to servive storms, sea serpants and even a couple of dwarfs. No, im being serioce, thease dwarfs are the worst, you dont want to run into them.