Maya had a class of first-graders who would, gently and naturally, forget her by middle school.

Rowan had barely begun.

The terror, at three in the morning, was not only that they were gone, but that the world would close over the place where they had been as though they had never existed at all — that in twenty years I would be the only person left alive who remembered the exact sound of Maya’s laugh, or the way Rowan said “aminal” instead of “animal” and refused to be corrected.

That the accident would take them once, and time would take them a second time, more slowly and just as completely.