This is a Tunnels and Trolls adventure in the Castle Calahony series.
At the end of the 3rd day the Baron order the army to halt in a green valley between the Katapanu, the Arawa and the Buwah, along the Tispa river. You can note many signs of orcish presence: stone paved paths, chopped trees, and smoke pouring from holes and pits in the mountains.
The Baron decides to send patrols up the mountain slopes to seek entrances to the orcish caves.
If you volunteer with your decurii, go up the mountain. Else wait for battle.
[If your party is split up, go back to your latest bookmark to pick up the rest of your party]