The strength of the weak

The group of prisoners didn't stop following Casper by any means. The Ridires giving chase on them were getting each time closer and wiping out their comrades right behind them. 

The ones who were on the rear of the formation could just pray to Odin and obey the orders to not retaliate and keep running away. 

It was doing more damage than good, but at that point, those inexperienced people couldn't help but act as Casper demanded. 

As time passed, the number of prisoners was decreasing. Their morale was going to the deepest bottom, some barely could find the motivation to keep going. 

Their lives were at stake, but it did not matter at all, since run away would lead them to death just as much as stay still would be a suicide.