Juliet's Moon — Ann Rinaldi

War is turning Juliet Bradshaw's world upside down. Her brother, Seth, rides with William Quantrill's renegade Confederate army, but he's helpless when the Yankees arrest Juliet along with the wives and sisters of Quantrill's soldiers as spies. Imprisoned in a dilapidated old house in Kansas City, Juliet is one of a handful of survivors after the building collapses, killing most of the young girls inside.

When she's reunited with her brother, Juliet finds the life she had previously known is gone. Surrounded by secrets, lies, murder, and chaos, she must determine just how far she will go to protect the people and things she holds dear.