I love this series - have since the start and I have yet to be disappointed. What's good is that Toby (and some of the other supporting characters) are allowed to change and develop as the series progresses. The book starts a year or so on from the last and the totally (for me) unexpected death of a principle character. Toby is still hurting, and those who care about her are getting worried. Interestingly although there's a good plot line with the "now you see her, now you don't" Chelsea and the damage she's doing, there's a second strong storyline following Toby's relationships with those around her, especially a particular one person! I agree with the other reviewer who says this feels like the end of the series - last paragraph "Sometimes a chance is more than enough. Sometimes that's all you need to have everything." Sounded very like a ta-daaaa end line to me, but Ms McGuire's website lists several more, so it's not. I suppose one of the long-running storylines has finally been resolved, but there are certainly others still hanging - Toby's mother, the selkies, who are Quentin's phenomenally tolerant parents, where's Simon... Can't wait! Don't start this series here. You'll probably enjoy the book, but there's a wealth of back story you need to really understand what's going on. Begin at the beginning (Rosemary and Rue), and, lucky you, you won't have to wait years for numbers 2, 3, 4, 5... - they're already out there waiting. Enjoy!