Through Ultan's Door Presents: Beneath the Moss Courts

From publisher blurb:

Through Ultan’s Door Press presents Beneath the Moss Courts, a companion adventure to Through Ultan's Door 3 written by Gus L. It expands one of the hidden locations of the sewer point crawl into an entire pirate-themed siege adventure that also reaches up into the law offices of Zyan Above. Receive your first glimpse of the city of Zyan! Defeat your enemies at trial with the testimony of cats! Loot the wreck of the Verdant Purveyor, rich with blood-stained pirate booty! Or, more likely, end up imprisoned in its water-choked hold!