Oathbreaker is a dark fantasy written by A.J. Rettger, who I encountered on Twitter. I received a copy of the book at no charge in order to post a review.
Oathbreaker was a surprisingly fun read! I had been warned in advance that it contained strong language and pretty horrible events happening to or with the participation of the characters, so I came in afraid I might not like it. I was wrong! Plotting and characters kept the story moving along very quickly. The world building is good. I haven’t read a book that I finished so fast in a long time, I really appreciated how quickly the prose kept me flipping page after page. People should be aware before they start that a lot of very dark things go on in this world. Think of the HBO version of Game of Thrones without the attempt to make it softcore porn. Ergo, think of the original books of the Song of Ice and Fire series. I skimmed the strongest of those scenes in this book.
If you can handle, choose to read, or like dark fantasy, you should buy a copy of Oathbreaker. It’s a fast, enjoyable read.