A travel event in The Banner Saga which occurs while you are on the road.
A group of Dredge appear off in the hills. They don't see your party, but you see them.
There are several options for dealing with this scenario. As you are just leaving a town, that complicates things.
Attack the Dredge - This will engage your party in battle, but victory will mean defeating the Dredge and saving the village below
Let the village deal with them - Take it on faith that the village behind can deal with the Dredge on their own. This will cause a few townspeople to die in combat.