Some Desperate Glory, by Emily Tesh

A future sci-fi story about what it means to have grown up in a radical militaristic doomsday cult in space - it does an amazing job of writing something incredibly readable from the pov of a horrible person. Kyr was raised to believe in the cult's values wholeheartedly so she is awful but she cares so MUCH about the things she believes in, and is so sure she's doing the right things, that the reader is drawn in anyway.

( cut for spoilers because there's a lot to talk about that's spoilers! )