The group (Agna having snuck out of the castle) took the lifts to the surface to retrieve Will Dodger from the bounty hunters. At the meeting, only one bounty hunter was visible, the one who had approach Alys in the underdark and upped the bounty. After being defeated, he admitted that his companions had taken Will away while he was on that journey. He sent the players to the small town of Torsh to look for clues as to where.
In Torsh, the PCs were able to interview NPCs and discover that Will’s bounty was issued in Waterdeep, on the far side of the globe. (Unknown to the others, it is also the city of the next target that Drakmor assigned to Alys…)