You are playing campaign mode.

Setup: Add the Myterious Omens side quest to the Campaign Log and shuffle it into the encounter deck. Add the Protect the Innocent side quest to the staging area and place damage on it equal to the amount of damage noted for it in the Campaign Log.

There was some murmur of agreement among the company. "It matters not whence the rain comes or if the trail ends; our quarry hides somewhere in these hills, and we must find them or forsake their captives and our oath."

Resolution: Note the amount of damage on Protect the Innocent in the Campaign Log (replacing the previous number).

The heroes forced the door open and thrust a torch inside. The flickering orange light revealed a small group of survivors huddled together in a corner. They appeared half–starved, and they shivered in the cold dungeon. The heroes removed their cloaks and placed them around the unfortunate prisoners to help warm them.
"Who has done this?" asked one of the heroes, but they were too distraught to answer.
At length, an older man named Thaurdir spoke, "We could hear the harsh voices of Orcs, but there was another voice that commanded them. I don't know what kind of creature it was, but it was terrifying to hear."
"We found none but Orcs when we arrived here," spoke one of the heroes.
"Then it must have escaped," answered the old man.
The hero turned to their companions and said, "We should take these people to Fornost where the Rangers are gathered. Iârion will want to hear what they can tell him of their capture."