Oh my God, the BEAUTY of this book.
I was kinda reluctant about starting it; it's been a few months since I've read my last Pern book, and I had this feeling that it was gonna be slow and a bit boring. How in the world could I forget the wonder that is Pern as a world and as a book series, I seriously don't know.
This book is set in the past (if we consider the present the time in which the first two trilogy were set), describing a part of the life of one of the most famous Dragonwomen in the history of Pern, Moreta. We almost at the end of a Pass and, to add to the distress of Threads, a misterious desease starts spreading so rapidly that before anyone understands what's going on, it's almost to late to do anything about it.
Everything is perfect, the little differences between the habits of people between this books and the previous ones, the constant feeling that you are reading the history of a world that really exist (because how can one person create this amazingly complex and "real" planet), and of course the characters are beautifully written, never flat and often surprising.