Mistshore

Travel to the outskirts of Waterdeep—a fantastical city teeming with secrets, where a perfect memory is a dangerous gift
 
Although human wizard Icelin Tearn would like to forget parts of her dangerous past, she is cursed with a perfect memory—and just enough magic that danger still lurks behind every corner. When Icelin is threatened by a mysterious elf who seems to know a great deal about her history, she is forced to flee to Mistshore, a part of Waterdeep that is cloaked in mystery and often avoided.
 
Joined by a monk named Ruen and a butcher named Sull, two accomplices she meets along the way, Icelin descends into the little-visited, unkempt parts of the City of Splendors. Here, she will learn new secrets that just may help to uncover the truth behind her haunting memories . . .
 
Mistshore is the second book in a series of standalone novels set in Waterdeep.