So the group moved on to the garrison, having found both possible ways to open the door there, a scroll from the wizard’s tower and the sword of the lost paladin. But there was another Barlgura demon in the garrison, together with some specters, and this time the demon was alive. I had the demon use his disguise spell to assume the same form as the specters, so the group didn’t immediately know where the main threat was. But otherwise the combat went without major events, and the group found the brazier, one of the three objects they were searching for Sir Oakley.
So they returned to Sir Oakley and rested in the temple. Then they decided to take the stairs in the temple leading down to a dungeon, where they encountered a band of gnolls. The group attacked immediately, while the gnolls tried to retreat. Most of the gnolls made it to the next room and barred the door, but the barbarian just crashed through that door with an exceptional strength check. So the group fought the gnolls from both rooms at once, which was a tough fight. After the fight we decided to stop for this session.