She isn’t my half-sister. She’s my whole sister. The first child my mother and father ever made together, the one they lost, the one my daddy wrote to in the dark for eighteen years and my mama locked away behind a padlock for eleven more.

I didn’t say anything to her. I bought a pack of gum I didn’t want just so I could stand at her register one more second and look at her face. She handed me my change and said, “You have a good one now, hon.” Same kind voice as our father.

I’m sitting in my car in that parking lot writing this. The shoebox is on the seat beside me. I keep telling myself I’ll go back in and tell her who I am, who we are. I just haven’t found my legs yet.

I keep going back to one of the cards, the one for her tenth birthday. He wrote, “I bet you’re tall like my side. I bet you laugh easy.” And I’m sitting here thinking, Daddy, she does. She laughs just like you. You were right. You guessed her right for eighteen years and you never once got to be right out loud.

I pulled that tenth card out of the box just now. I don’t know why that one. Maybe because ten felt like the middle, like the year he must’ve known good and well he was never going to mail any of them. His handwriting on that one is so steady. So sure. “I’m still here,” it says at the bottom. “I’ll always be here.” Bless him. He wasn’t. But the cards were.

So here’s what I’m going to do. I’m going back in there. I’m going to put this whole shoebox on her counter, and when she asks me what it is, I’m going to say the only true thing I’ve got.

“These are from our father. He never stopped.”

And then I’ll let her open them.