This series has been great! Truly epic throughout and I am so very happy with how it all finalised too. This is book #5 in the series, so of course I can't really say too much about what happens, but suffice to say the stakes are the highest they have ever been in this book, and there's a lot of trouble ahead for our main characters.
This story once more follows Julius and the Merlin and the adventures they have trying to save the world and convince people to work together. The world is divided into humans, mages, dragons and spirits (mortal and natural). None of these groups want to get along usually, but we see that the fate of the world is relying on them all doing just that. If Julius can't get them all to work together, then the whole entire world may collapse, with all of them inside it...
What I love about this series is that it's a super light and upbeat story, and yet it has so much scale and drama too. You certainly feel like the action is fast and furious, and the characters are powerful beyond belief, but the dangers are too so everything scales and matches accordingly, leaving a really awesome story.
I love the way the issues were resolved in this, and I also really enjoyed seeing how the Seers fitted in and the new spirits were forced to understand more about themselves too. There was a lot that came together in this book, and some of the mysteries from previous books were also explained and we got to see how they were resolved (e.g. who is this pigeon? who is the next Seer etc.)
Overall, this was a great series ender, and yet there is room to go back to the world and the ideas Aaron has created here. I can't wait to see what happens next, even though this story is over, and I will for sure be buying whatever Aaron brings out here. 4.5*s from me :)