First of all... have you seen that cover?! I love it!!! I'm in love! The full cover also has Aldrik sitting in a throne looking right at you! 
 Moving on to the story, I'm really satisfied with the ending of the series. There are a few unanswered questions regarding the crystals and the old magic, but I think those mysteries are meant to be unsolved. 
 There are some heartbreaking moments, and some in which I wanted to shout at Vhalla for being stupid, but overall there is a lot of action expectation for the big climax. 
 Loved this series (if you remove the love triangles) and I loved the fact that all 5 books were published within a year or so. 
 I also have a confession to make... I still misspell Vhalla and Aldrik EVERY SINGLE TIME :P