This book goes over the various rules around the faction of the Zhentarim in Phandalin and the Forgotten Realms, making it easy for any new or veteran DMs to integrate it more into the core stories being told, and making the faction feel more useful for the players that choose to join.
The adventure, Barrhindlun sees the adventurers working for the Zhentarim and traveling to the town of Leilon and finding their way beneath to the muddy lost city of Barrhindlun, where bandits of the Xanathar Guild have been sent to reclaim a Crystal Orb.
This adventure doesn't have any pending change requests.