This story takes place fairly soon after the end of The Silver Glove. In this story, unlike the previous two, Valentine is forced to reveal to others her magic, what little magic she does. My only problem with this entire series is that Valentine does very little magic. The reader never really gets to know what magic she does.
I did like that more of her friends, if you can call them that, were involved in this story. It was also nice to see Joel back again. As for Valentine never getting to Sorcery Hall, maybe more books will follow. I am left wondering if she will ever make it there and get a better understanding of what her powers truly are. Bosanka is an interesting villain, but she really isn't very mean. She only turns Peter into a deer. I was expecting something much worse, and would have been happier if something really nasty happened to him. Valentine uses her wits more than magic in this story.
The Golden Thread by Suzy McKee Charnas is an interesting conclusion to the Sorcery Hall Trilogy, but it does leave a lot of questions unanswered. Overall, this is a fun book to read, but it is missing something, as is the entire trilogy.
I rated this book a 7½ out of 10.