Robin LaFevers writes young adult historical fantasy about girls trained for dangerous roles inside worlds shaped by court politics, religion and supernatural belief. Grave Mercy begins the His Fair Assassin series with Ismae, who escapes an abusive future and enters a convent that trains assassins said to serve the god of death. The series follows different young women connected to Brittany's political struggle, combining missions, romance and historical figures. LaFevers also writes middle-grade fantasy under related names and later returned to the same world in the Courting Darkness books. Her prose is accessible, atmospheric and plot-led, fitting YA historical fantasy, assassin fiction and court intrigue. Grave Mercy is the natural starting point for the series. Read more Less