This is my favorite book out of the series, and a large part of that is because it's set in Wales. I have a weakness for the place, most probably because I'm part Welsh, and the places she has used are all described so perfectly. Cooper is a master bard. She makes one see in the mind what she writes about, and that is no mean feat in a world such as ours! Will comes to Wales to convalesce, but he is troubled by snatches or memories he does not quite recall. His mind reawakens, and the adventure begins agains. Bran is a marvelous character, and I remember simply bursting at the seams when I found out exactly who he was at the end! I first read this book when I was twelve, and I now own the series. I'm 22, and I still read these books annually, if not more. The Grey King excells in pulling together many of the various Arthurian legends, but Cooper does it in such a fresh and lovely way. Prepare to get your socks blown off by this amazing book!