[RipSawyer]

If they start acting like real Vikings it will be too soon and too much for the “immigrants”. If they rediscover the secrets of the “Berserkers” the immigrants will be trying to swim the ocean to get out of the North.

This guy tells it https://www.youtube.com/watch?v=Pt8WgxwER74

[archy]

If they rediscover the secrets of the "Berserkers" the immigrants will be trying to swim the ocean to get out of the North.

You mean like the Fountains of Tyr and Blutrausch? Too late! They remember.

Then consider this guy, from 1940. Or this one.