The Gemma Doyle Trilogy by Libba Bray

Just finished reading this fabulous trilogy. Take one part historical fiction, one part fantasy, one part mystery, then add a nice dollop of feminist sensibility along with a sprinkling of dry wit and you'll have the essence of these books. I won't say too much (to avoid spoiling the story for everyone!) but the series is a smart mystery that will keep you hopping and the heroines are flawed-yet-utterly-lovable, each in her own way. I couldn't put them down and am eager to read the rest of Libba's books. They all look lovely! 
​http://libbabray.com/the-gemma-doyle-trilogy