The Book of Doors

I loved it! It was adventurous, intense, and emotional. I was very much invested in the characters, and I liked the simple worldbuilding.

Simply put, this is a book about a world with special magical books. They're priceless, valuable artifacts that people want to get their hands on--to be used for various purposes. The protagonist, Cassie, suddenly finds herself smack dab in the middle of this chaos.