A Severed Wasp

Blurb

A Severed Wasp 1982, is a novel by Madeleine L'Engle. It continues the story of a pianist, Katherine Forrester, who was first seen in The Small Rain. Now a widow in her seventies, Katherine Forrester Vigneras returns to New York City in retirement from concert touring in Europe. There she encounters Felix Bodeway, an old friend from her Greenwich Village days, who is now the retired Episcopal Bishop of New York. He asks Katherine to give a benefit concert at the Cathedral of St. John the Divine. It turns out to be an unexpected challenge, full of new friends and mysterious dangers.
During the novel Katherine is befriended by several recurring characters from other L'Engle novels, including Mimi Oppenheimer from A Winter's Love, Josiah "Dave" Davidson from The Young Unicorns, and Suzy Austin (now Dr. Suzy Davidson) from the Austin family series (which L'Engle called her "Chronos" novels).
The Cathedral of Saint John the Divine, which figures prominently in the plot of A Severed Wasp, is also the setting for the 1968 L'Engle novel The Young Unicorns. The author herself was librarian and writer-in-residence at the same cathedral for several decades.