Everything about the demolition had been textbook. Air Traffic Control had been informed and the math had been painstakingly triple-checked.
The building developers had made a media spectacle out of it, handing out free dust masks and using drones to capture every angle of the building coming down.
After the safety team had radioed in to give the green light, the mayor ceremoniously inserted an oversized key into a useless keyhole and turned it.
It would be weeks of hauling rubble out of the site before they found her; a girl in a cloak, clutching the remains of a toy hand-mirror.