I love complex heroes & villains. I love discussions of magic & power & corruption. Heir follows 3 main characters - Aiz, Quil, and Sirsha & each story is delicately interwoven together. I always find novels with a divine being & religious fanaticism really interesting & when done well it can put a good fantasy novel in the realm of a great fantasy novel in my eyes. The characters had the complexity & development I yearn for in a good fantasy novel - the romance was great - not quite as slow burn as I like but I enjoyed its intensity. Heir is a perfect example of a magic system done well. The only reason this isn't getting 5 stars from me & this is a just a personal gripe is that this was marketed as being able to be read as a standalone, HOWEVER, I do highly recommend reading her previous series beforehand because there were times where I could feel that someone & something & some event or place was significant but I just didn't know why - again, that's a personal issue & my own fault for not having read her previous series.