Ryana, a worthless girl-child, is sold to a mysterious woman who takes her to the home of the Shadow Sisters who are prized for their abilities as spies and assassins. She survives years of training in spite of being unconventional: adopting poisonous bats as familiars--something no one else would dare to do; choosing the blow dart as her weapon of choice--a weapon the Sisters don't teach; and relying on intuition rather than logic.As she completes...