Greenstone Grail by Amanda Hemingway

At first I could not figure out whether this was a teen or an adult book. I'm still not entirely sure. Some libraries have it in their teen section, others in the adult fantasy section. I would say, having read about half of it, that it would be for older teens, not younger ones. Although I enjoyed the writing, it was a slow-paced book and once I found out that it (and its sequels) was a retelling of the Arthurian legend, I just couldn't bring myself to finish it. I don't know why, but Arthurian stories do absolutely nothing for me.  I do think this is a book that many people who enjoy fantasy and/or Arthurian legends will enjoy. It just doesn't happen to have been my cup of tea.