He'd been gone three years. She'd never had the courage.

Tonight, she double-clicked.

Lena stared at the file on her desktop: videoplaytool.exe .

Hesitant, she typed her 12th birthday — the day before her mother left.

Then her father's recorded voice spoke through the program: "Every exe I made was a door. I couldn't fix the past. But I could let you visit it. One memory per year. Choose wisely."

Her father had left it on a flash drive tucked inside an old tin box, along with a handwritten note: "Run this when I'm gone."