Ah thanks for the reply ShibuaCloth. I did a search. The required potion for the adventure is potion of gills which looks like it's part of the Blythwood series. I should have looked instead of posting. With the potion and mermaid scales and a new event my mind went down that path. The adventure is called To Glimmer Beach and it looks like the story is Amber Augmentations. Not related to this event I'm sorry.
Y'all can delete both of my posts to clean up the thread and prevent confusion.