After defeating the demon that was posing as Quorlinn, the Kenku’s lost God, the party convinced some of the Kenku to lead them to the Fortress ruins where there were said to be two dragons. After some conflicts with Kobolds, sinkholes, and the burning mists themselves, the party reached the outskirts of the ruined Fortress moat.
There were a great many patrols and guards, including Kobolds riding on the back of giant draconic serpents. The party scouted and planned a lot for their entry into the fortress. After their extensive planning, the group did something completely different, but managed to cross the bridge that spanned the moat nevertheless.
Once inside, the party encountered a large black female dragon who spoke to them in a deep voice that rumbled in their bones: “We need to talk.”