Two friends, Mats Gildersson and John Auric, stumble across something strange in the Swedish mountains. While trying to find out what it is, they meet an archaeologist, Eva Ericsson, who wants to be involved in the investigations.

 

Her goal is to enrich the world's knowledge of the Vikings. The blokes want to enrich their bank accounts.

Their search uncovers much more than anyone bargained for. Stuff that some people want to take from them, and are prepared to do bad things to get their hands on. And other stuff that some people would much rather stayed hidden, and are prepared to do bad things to make sure it does..