When you return to Ravensthorpe to complete Reporting on Grantebridgescire or Reporting on Ledecestrescire, depending on the order in which you did either story arc, the settlement quest Uninvited Guests will begin. During this quest you’ll need to decide whether to kill or free a captured Dane.
Kill the Captured Dane
If you choose to kill the captured Dane Randvi will state that this is a stupid decision, as you could have sent a spy to follow him and learn more about where he came from. Dag on the other hand will be pleased, but this won’t necessarily improve his relationship with Eivor.
Free the Captured Dane
If you choose to free the captured Dane Randvi will be pleased, but Dag will be infuriated and will kill the Dane regardless. The choice has no further implication, other than the role-playing significance of maintaining a good relationship with Randvi. The relationship with Dag is destined for conflict, so you don’t need to worry about appeasing him.