Foreshadowing

I think I found foreshadowing, unless I'm misunderstanding this donation business. I see the donations as ex-students giving organs to the richer, royal families of England. When I read what Miss Lucy said, "So keeping yourselves well, keeping yourselves very healthy inside, that's much more important for each of you than it is for me," I thought she was alluding to the donations in the future. They may also be why they can't have children. With Ruth's death, I know that the donations must be risky. But they must also be mandatory. I want to know more about their purpose and how they work. The author is slowly revealing pieces of information about this civilization. After A Separate Peace and Never Let Me Go, I'm glad I don't go to a boarding school.