Last book, Riften got threats in her dream. What does it mean and what will happen? Who is doing this and why?

About a girl, (Riften) with her new group of friends. As things start to get crazy when she arrives at Isevel, what will go right or wrong? (Also in a book series, there are two other completed books that will be published on Wattpad later)

Most of the original pics are not mine Eh I like to be a asshole to my friends :) (Cover image is not mine)

Just random