BALTIMORE — From the time she was a child, Nikki Royster knew she had a sister. The knowledge followed her like a shadow through life.
“It’s always in the back of your head that there’s somebody out there,” she said.
Placed in foster care after birth in Baltimore in 1970, Royster, 51, was adopted when she was a baby. The Baltimore County adoption agency had mentioned the existence of a sister to Royster’s parents but offered scant other details.
