Book 7 of The Unwanteds. This was a great conclusion to the series. Albeit I thought it would go another way. That said if you can put up a dome to protect from the elements and you can create a hurricane, this plot hole was glaring and made the whole end 1/2 of the book seem drab. I was shocked that the author did not see it and at least explain why not. Was the battle good, yes. But the whole time I was waiting for the elemental magic to be used that they had been studying / fighting. Sad to say that the ending was flat because of it. I did like other facets but just the large plot hole that made it distracting. All of that said, I will read the spin-off series unless it gets too unbearable.