I discovered some years ago that just because you're a mature adult, it doesn't preclude you from reading and enjoying fantasy books that are on the teenage shelf. If its a good storey, who cares? This is no exception. This book follows on from the opening of the circle quartet and continues the adventures of Briar, Rosethorn and Evi. It fills in the missing links covered in Melting Stones. I really enjoyed reading about these characters but I think you need to read the other books in the cycle to understand what is happening in this novel.