Madeleine L'Engle discussion

An interesting theme is that the sins of the parents are visited on the children, to the fourth generation.

Does Simon's elderly aunt, who raised him in poverty, but rich in books, know what she is sending her nephew into? Is Simon a free agent in making his choice at the end?

Can the past be redeemed? forgiven? truly left behind?

Discuss any of these, or anything else about this book. I'll jump back in, too.