Let me get this out of the way first. Squeeeeeee!!!!!!!!!! This review will be spoiler free. It will be vague with a lot of gushing. Don't say I didn't warn you.This is what we Fever fans have all been waiting for. We anxiously counted down the days to the release of the 5th and final book of the Fever series, Shadowfever. I pre-ordered Shadowfever for my Kindle and woke up at 3am on Tuesday morning to start reading it. O.M.G.! I finished Shadowfever that same day. Karen Moning delivered everything and more!Dreamfever ended with a hell of a cliffhanger. We were left wondering who Mac had killed. Shadowfever picks up right where Dreamfever left off. We get the answer to the Dreamfever cliffhanger at the very beginning and that reveal is a punch in the gut. Moning grabs you from the very first page and does not let you go until the end. There were lots of OMG and WTF moments while reading Shadowfever. There were so many twists and turns that I couldn't keep everything straight in my head. I used my Kindle's highlighting feature so much that I had a cramp in my thumb by the time I was done. Shadowfever was everything I wanted and more. I worried that with the book being over 600 pages, that it would not live it to the hype. For me, it did. There were parts that were drawn out and long. How could it not be? It has to be difficult to write a book of this magnitude and not have the plot slow down or stall a little. I suspected this would be the case before I started reading, so I wasn't too bothered by it. The endless paragraphs of Mac asking questions got annoying at times but I just skimmed over them. And maybe some things were wrapped up too neatly or exposed too late in the book. But I didn't care. None of these issues ruined the book for me.When I finished Shadowfever, I was exhausted and happy. And then I started discussing Shadowfever with some of my friends and wanted to read it all over again. And I still do. I am suffering from PSSS (Post Shadowfever Stress Syndrome). I can't stop thinking about it!Shadowfever was the perfect finish to an awesomely great series. It was the icing on the cake. It was everything I expected and more. Questions were answered but just as many new questions were brought to the forefront. One door closes and another one opens, leaving the possibility of a Fever spin-off series. So this is the end....for now.