So far as I remember it has a belated and very unsatisfactory sequel that munches up the characters and breaks off with nothing resolved, to the degree that the author actually apologised for keeping the readers hanging -- whether that was ever actually followed up I don't know, because I never came across a sequel-to-the-sequel and preferred to forget about it.

https://www.goodreads.com/book/show/176245.Dragonshadow
Ouch, yes...

"Under no conditions read the sequels. In fact, let us agree that the publishing records lie and no sequels exist. We will all be happier that way." :-(