Here is memory #5 from Chapter 17:
That had been the darkest day of Robert’s life after his father’s death, and in some ways it had been worse, for he could not have saved his father, but if he had been more careful, more cautious—if he had thought before he acted—he might have saved Lottie.
Marguerite stood and slid her arms around his neck. “Never again,” she said fiercely.
He held her tight against him and buried his face in her sweet-smelling hair. He had felt a promise of healing once in her kiss. Now her comfort swept all around him. If the guilt and anger did not fully fade, the emotions ebbed back into that bearable corner where he had learned to tamp them down and live his life with energy and optimism, though too often impulsiveness still tripped him into trouble.