She knew she had an older sibling out there. While Cass was raised primarily by David Cain, they were raised by Lady Shiva. Forcibly raised apart to prevent building bonds. She’d only heard about them once before Cass ran away.

She didn’t think long after her escape and living with Bruce Wayne and the others that she’d see them face to face. The resemblance to David Cain and Lady Shiva is uncanny, staring back at her with an angry glare that could only mean one thing; death.