It took ten minutes. One moment she stood in line for juice boxes; the next, she had disappeared. When the school phoned, I was at the sink rinsing a mug, thinking about nothing that mattered.

“Mrs. Holloway? We can’t find Catherine,” Ms. Dillon said, her voice trembling. “What do you mean you can’t find her?” I demanded. “I turned my back for a second,” she said quickly, and I was already snatching my keys.

The playground looked painfully ordinary. Children were still shouting, the swing chains still squealed, and the sun shone without mercy. Frank stood by the slide, rigid, staring at the mulch.

I seized his arm. “Where is she?” His lips parted and closed before he managed sound. “I don’t know,” he whispered, his eyes turning glassy.

Her pink backpack lay beside the slide, tipped onto its side. One strap twisted awkwardly, and her favorite red mitten rested in the wood chips, bright as a warning flare. I pressed it to my face and tasted dirt, soap, and her.

An officer knelt near the backpack. “Any custody issues? Anyone who might take her?” he asked. “She’s four,” I snapped. “Her biggest problem is nap time.”