A Sister's Crusade is a story of a wronged heroine set towards the end of the 12th century. Aubrette, raised at Romhill as a companion to the local lord's only daughter Rowena, discovers that she is actually Rowena's half-sister. This revelation comes on the day Rowena meets her future husband, Simon Fitzroy, one of King Henry II's illegitimate sons. Aubrette remains with her now sister, and becomes Rowena's maid after she is married. After a tragic incident, she becomes Simon's secret mistress. The affair is unbeknown to Rowena, until Aubrette discovers she is pregnant. Her son is taken from her at birth for Rowena to raise as her own child. Aubrette, having thought Simon truly loved her, is unwillingly married to Hugh, a companion of Duke Richard and loyal friend to Simon. When the King dies, Richard succeeds him to the throne and he travels with Simon to the Holy Land on a crusade. Aubrette and Rowena accompany Hugh and Simon as attendants to Queen Berengaria, Richard's long-neglected wife. A series of traumatic life changing events follow that result in Simon being sent back to England, but not before he and Aubrette are married in Cyprus. Back at Romhill, Aubrette settles into domesticity and everything appears perfect. But could a threat from an unexpected enemy ruin Aubrette's happiness? Full of adventure, love, lust and deception, A Sister's Crusade will appeal to fans of romance and historical novels in equal measure.