My stepdaughter took a DNA test for fun – but one line in the results changed everything in my family

She ate dinner without saying much. She kept her eyes down on her plate whenever I looked at her. Then she asked Chris if they could talk. Just the two of them.
Something was wrong with her.
I stayed in the kitchen and heard the door close at the end of the hall, followed by the murmur of low voices, and then, clearly and unmistakably, Susan's sobs.
I didn't understand what was happening.
Chris came out 20 minutes later, holding a folded sheet of paper.
"Read this," he said. He placed the paper in front of me. "The result is interesting. You're going to find this very interesting."
I didn't understand what was happening.
The report was a page long. I reread the first part twice before the words formed something I could understand.
Parent-child correspondence. Confidence level: 99.97%.
The maternal line had… my name.
I looked up at Chris. He was watching me read.
“The hospital listed in Susan’s adoption file,” he said. “You mentioned it once, the night we talked about the baby you gave up for adoption. I didn’t really think much of it then. I was barely listening… until I checked the adoption file again just now.”
I didn’t reply. I already knew.
My mother’s side of the family had… my name.
“It’s the same hospital, Krystle,” Chris concluded. “The same year. The same month.”
The paper in my hands felt like it weighed ten pounds. The room had gone very quiet.
Susan was standing in the hallway. I don’t know how long the three of us stood there in silence.
Susan was the first to move. Not toward me, but backward, leaning against the wall as if she needed something solid behind her. Her face expressed six things at once, and I recognized them all because I'd worn versions of them myself for 15 years.
"She was here," Susan whispered. "She was here all the time."
I don't know how long the three of us stood there without speaking.
"Susan... darling..." Chris began.
"No, Dad! She was here. My mother... she was right here."
I took a step toward her. Susan looked at me, something cracked in her expression, and then she began to cry.