This was a very good book, well researched and written and I enjoyed it. My only problem was that I could not get "into it" for a long time due to the quite blatant fictional aspects of the book. Yes, I understand it was a novel. Let's go right to the point,though, and say she did not have an adult brother named Cuthbert, and that it is extremely doubtful that Cecily Neville had an illicit physical affair with a fairly close relative.
So what would have been a 5 star book for me sort of melted down to maybe 3.75. I almost did not finish it but I am very glad that I did. Once I got going on it, I could not put it down. The historical details were mostly excellent and the last half of the book was a delight.
Except that Cecily had no such adult brother, the role of Cuthbert as "other voice" worked very well. Perhaps he could have been a well depended on squire so there was not SO much fiction but he lent credence to the "unseen" things we needed to hear about Cecily and Richard's life.
I do recommend this book to those who admire this part of the Plantagenet family and just say.."keep reading" as it is certainly worthwhile!