Book 1 & 2 were pretty good, but book 3 was just amazing! The characters have really developed and come into their own (especially Anna-Karin, when did she turn into a badass?) I loved the realistic portrayal of PTSD with Linnea, and Minoo's whole descent. This book had some amazing moments and a climax that did not disappoint. It's too bad this series isn't more well known.

Such an ending!!! 
This series has always set itself apart because there were not truly happy or easy things: yes they saved the world, but they lost lots of people. We saw the girls go from strangers, to reluctant companions, to friends, to finally a family; all while having fights and relationships and lies and secrets and being teenage girls (always difficult even if you're not a witch).
This book goes deep into other characters some who we already met: I loved Viktor's progression,  Gustaf (who I love wholeheartedly), Rikard and Evalina (great new additions without much spoilers) and the always secretive Mona. And some new that I loved: Clara (whom I just want to hug), Walter (and his strange influence) or Felix. 
So I am sad to see this series go, (specially when I feel there was so much potential for at least a little time forward novella with the ending) but sometimes it's best to let go than to extend it. All in all a perfect book