A Nightingale Falling: Amidst the Irish War of Independence, the quiet lives of sisters May and Tilly are upended when May takes in a wounded British soldier, Captain Shearing. In caring for him, the sisters must evade IRA suspicion and British patrols to protect their new houseguest--and their own safety. But when Tilly and Shearing fall in love, they hatch a dangerous plan that could drive a wedge between the sisters.