Madeleine L'Engle's classic young adult books include A Wrinkle in Time, A Swiftly Tilting Planet, and Certain Women. The Small Rain, an adult novel, focuses on Katherine Forrester, the daughter of distinguished musical artists, whose career as a concert pianist evolves through loves and losses. Katherine is a child growing up in a refined, yet bohemian, artistic ambience—theatrical as well as musical ... [Her] adolescence is lonely and difficult, but as Katherine advances to young womanhood, her heart as well as her talent is promisingly engaged (Publishers Weekly).

Katherine Forrester Vigneras, in a continuation of her story from The Small Rain, returns to New York City from Europe to retire. Now in her seventies, she encounters an old friend from her Greenwich Village days who, it turns out, is the former Bishop of New York. He asks Katherine to give a benefit concert at the Cathedral of St. John the Divine. This leads to new demands on her resources—human, artistic, psychological, and spiritual—that are entirely unexpected.