After Hendrae leaves to rescue the city of Waterdeep from Asmodeus the party is left to deal with Lady Arronal on their own. During the battle Lady Arronal summons three stone defenders to aid her even with this the party is able to defeat Lady Arronal who on the killing blow turned to dust.
Once Hendrae returns to the group he rewards the party is a chest filled with rare and magical weapons. The party makes their way down the tunnel entrance which leads them to the storage room of the Nightmare Oasis.
While at the Nightmare Oasis the party learns that the summoning of Asmodeus caused a minor earthquake that “shook” Sylgar fishbowl causing Xanathar to go into a rage and summon his entire band of mercenary Wererats to help the city and defeat the hordes of undead attacking the city.
After discussing the event that happened in the city with Xanathar, the party returned to Grimcrest Manor and informed Lord Grimcrest that the party discovered who killed his brother. After learning of the events that transpired Lord Grimcrest requests that the party not disclose what his brother was involved in for it would destroy his family name. And as promised Grimcrest rewards the party with the agreed amount of 100,000 gold pieces for completing the investigation.
While at the Manor Lady Laeral Silverhand secretly pays the party a visit and privately thanks them for there involvement with the recent events and that she will not be able to publicly disclose the real reason of the demon attack on the city.
Lady Laeral Silverhand grants the members knighthoods of Baron and Baroness and gives them Greycastle House since he left no heirs. And with the investigation complete and the city safe from the Raven Lords for now, the party members go their separate ways and thus conclude their adventures together.