Star eater

"Elfreda Raughn will avoid pregnancy if it kills her, and one way or another, it will kill her. Though she's able to stomach her gruesome day-to-day duties, the reality of preserving the Sisterhood of Aytrium's magical bloodline horrifies her. She wants out, whatever the cost. So when a shadowy cabal approaches Elfreda with an offer of escape, she leaps at the opportunity. As their spy, she gains access to the highest reaches of the Sisterhood, and enters a glittering world of opulent parties, subtle deceptions, and unexpected bloodshed. A phantasmagorical indictment of hereditary power, Star Eater takes readers deep into a perilous and uncanny world where even the most powerful women are forced to choose what sacrifices they will make, so that they might have any choice at all"--