** spoiler alert ** 
 The finale of the Discovery of Witches trilogy manages to somehow provide a strangely satisfying ending without really answering any real questions posed in the previous two books. It shouldn't work, but it does. 
 We open where we left off at the end of the second book, with Matthew and Diana back in the present, meeting with their family after their jaunt in the past. From that point on, we move from France, to New Haven, to Yale, to London, to New Orleans, to Venice and a few other places in between and meet a variety of new people as Diana and Matthew try and solve the mystery of the magical book and stop the Congregation from pursuing them and endangering their unborn children. 
 I really enjoyed this, but I won't lie and say it was flawless. I was pleased that it was clearly a pre-cursor to further books because I didn't feel like much was actually answered properly. They just kinda happened and it was accepted. Diana's threads end up in her body - meh, it happens. She absorbs the words of the Book of Life - what are you going to do about it? She and Matthew's depiction shows up in another ancient image? Small world. Etc, etc. It doesn't detract, but sometimes I wouldn't mind it all being a bit more than just being convenient. I do wonder if this is a side-effect of the decision to make Diana super Diana - I think making her so powerful was perhaps a mistake, and because she's now so powerful, there is no real reason/need to explain or solve anything. 'Powerful magic', 'she's special', 'the Goddess said so' can now be the answer to every question. 
 My main issue with the book though was the abundance of characters. Like Shadow of the Night, we have a lot of characters that aren't that necessary to the plot, so only really serve to confuse things, and take time away from people I do like. It was nice to see some - Jack in particular, even Father Hubbard, but others just felt like too much especially as we lost some of the characters that we had spent time with/got invested in in the process, such as Nathan and Sophie who were sent to Australia for the whole of the book. 
 Despite this, I did love the book. I know it sounds like I didn't, but I really did. It got better as it went on and I found myself unwilling to put it down, in particular in the most successful parts that had Diana and Matthew together. There was a ridiculous separation mid-way through the book (it's a vampire book, of course there was a pointless separation, although thankfully, it was only distance and not anything worse) and a heart-breaking one near the end (Matthew, my love...:(), but they are forever the best part of the book. 
 I can't really go into the plot twists of the book without spoiling it too much, but it is definitely a set up for a fourth book - and honestly, I'm happy with that. Lets move on from the Congregation and Covenant and explain things - hell, lets go time walking some more. I'll take anything. I think I'd read Matthew and Diana Take The Kids To School books and be happy about it though, so maybe I'm biased. 
 In summary, for me, the book is probably a three star book, but I'm giving it four. The book has a lot of details/people that could have been edited out, Diana has become too powerful for the world she inhabits which has made for a degree of laziness from the author, it didn't answer the questions I had and a lot was overly convenient, but it had a terribly evil villain, it had romance, it had history, it had magic, love, legit moments where you can't believe what you're reading and it left enough open that it could launch a whole series of new books. And I will eagerly read them all. Just please, no more new characters.