Kira, fully grown up, tells her classroom of third graders the story of her "aunties" and remembers the one who fell.

Skye loved math and science because they were definitive. Either you gave the right answer, or you didn't. But it was questions like these that sent her reeling. No correct choice, it was all up to her. And to make matters worse, these questions seem to always be the ones with the biggest impact on life.

"She knew that this day was coming eventually. They were old and had lived long lives. But that by no means meant that she was prepared for it." The story of Rory's last day.