The day after the drums in the night, the missing NPCs return to camp. They tell their story:
They were following their set of tracks when they were ambushed by a group of Indians. The surprise was so complete that they didn’t even have a change to fight back. They were taken by canoe to the mainland where they were tied to a post in the middle of the village. As the Indians were dancing around the fire drumming started, scaring them, and then they were attacked from outside the walls. In the confusion they managed to get loose, steal a canoe and escape.
After some food and rest they volunteer to lead a party back to the village for some payback. The walled village is to the NE of the colony on the mainland.