Twenty-one years after my daughter vanished from a kindergarten playground, I believed I had learned to live with the silence. Then, on what would have been her 25th birthday, a plain white envelope arrived. Inside was a photograph and a letter that began, “Dear Mom.”

For 21 years, I left my daughter’s room untouched. Lavender paint on the walls, glow-in-the-dark stars on the ceiling, tiny sneakers lined up by the door. If I opened the closet, the faint scent of strawberry shampoo still lingered.

My sister said it wasn’t healthy. “Laura, you can’t freeze time,” she told me, lingering at the doorway as if crossing the threshold might break something. I answered, “You don’t get to redecorate my grief,” and she walked away with tears in her eyes.

Catherine vanished from her kindergarten playground at four years old. She wore a yellow dress dotted with daisies and two mismatched barrettes because “princesses mix colors.” That morning she had asked, “Curly noodles tonight, Mommy?”

Frank hoisted her backpack with a grin. “Spaghetti with curlies. Deal.” I called after them, “Your red mitten!” and Catherine held it up through the car window. “I got it!”