Ghul wrote:

Interesting results! Let us know what happens next!

Thanks! It did turn out very interestingly.

Writing this out as a post has inspired me to go political with the Vikings. We'll offer the party a chance to establish their land grants from Ragnar. To claim their grants they'll have to vie with other lords who think the land is theirs, enemies of Ragnar. Perhaps an accident in a battle can take us to "Chapter 2" of the adventure.
 

Follow up on this one: The nightguants eventually showed up and stole the thing back. Later, while travelling through the woodlands of Gal, the Cryomancer who earlier possessed it died accidentally sniffing a blue lotus. Such is life.