Cassandra Cain is a member of the Bat-Family as a protégé and adoptive daughter of Batman. The daughter of assassins David Cain and Lady Shiva, she was raised to become the greatest weapon for the League of Assassins. However, horrified from her first killing, she fled to the Batman family for protection. Becoming the fourth claimant of the Batgirl identity, she helps him and Tim Drake protect Gotham. However one day you find her bleeding and wounded while her mask is off discovering her true identity.