God's War: Bel Dame Apocrypha Volume 1 Kameron Hurley
Some days, Nyx was a Bel Dame - an honored, respected, and deadly government-funded assassin - other days, she was a butcher and a hunter; a woman with nothing to lose. Now the butcher has a bounty to bring in. Nyx and her rag-tag group of mercenaries is about to take up a contract that will shake the foundations of two warring governments...This book is now nominated for the Nebula Award for Best Novel of 2011.