Description：

Lillian Marsh has spent fourteen years loving a man she was never supposed to have.

In high school, a kind, dying girl named Sunny Hayes became her sister, her savior, and the keeper of her debt. Sunny's last request was simple: take care of Aaron, the boy I love, when I'm gone.

Lillian kept the promise. She married him. For seven years she lived in a quiet, glacial marriage with a man whose heart had been buried beside Sunny's grave.

Then Sunny's half-sister moves into the house — a perfect, cruel imitation of the girl they both lost — and the silence breaks.

But Lillian is hiding her own diagnosis. And Aaron is hiding a reason for marrying her that she never imagined.

A devastating, quietly luminous novel about grief, friendship, and the love that cannot survive its own debts.