Maybe a 3.5 out of 5 stars.
FROSTBLOOD by Elly Blake is such an original take on elemental magic - in this case fire and ice. Although I can't specifically remember books that only had the elemental powers of fire and ice (compared to books with water, earth, fire and air), I've read books with this theme of fire vs. ice, summer vs. winter and I think it's really easy for it to feel overdone. Blake turns it into something fresh and exciting.
I recommend this for readers wanting a small-scale fantasy world with tons of action. The world-building gets a pass from me but I would have liked more. I personally love fantasy books with a huge world, filled with all kinds of different stories. This is great for readers who get overwhelmed by those big fantasy worlds and just want a little magic, some action and fast paced writing.
The protagonist Ruby is very likeable and I loved being in her head. Although she isn't quite on my list of favourite YA heroines, I can see her getting there after book two. I liked the romance between Ruby and Arcus, another main character. I was pretty much neutral about them in part one and ended up really shipping them at the end of part two.
This book is divided into two parts and I loved part two so much more than part one! There was so much more action, big fight scenes, and I loved the exchange between Ruby and King Rasmus, the Frost King - it was really intriguing! I just love when authors delve into these darker moments with their characters. Part one was good and it drew me in, but some of the chapters felt like "first book syndrome". In the beginning the protagonist would travel around in all sorts of different directions and it ended up feeling like an excuse to add world-building or to share important information with the reader. I also felt like the cast of main characters was very small - there was a greater focus on Ruby and Arcus. Secondary characters felt more like minor ones because we didn't really get to know them, other than maybe a talent of theirs or a hobby.
I definitely recommend FROSTBLOOD and plan to read the sequel! I hope the author expands on the main cast and the world-building in book two. An original take on elemental magic with fast paced writing and a strong, likeable protagonist.