I Capture the Castle guests describe each other in terms of famous artists. Topaz is called a work by William Blake, Rose is said to resemble Emma, Lady Hamilton, the muse of the painter George Romney, Simon says that Cassandra is like "Girl with a Mousetrap," a painting by Joshua Reynolds, and Mrs Fox-Cotton is said to be a work by Salvador Dalí "with snakes coming out of her ears". Simon introduces Cassandra to the works of Claude Debussy: "Clair de lune", "La cathédrale engloutie", "La terrasse des audiences du clair de lune". She also listens to J. S. Bach's "Sheep May Safely Graze"
John Barrymore which left her and Barrymore free to marry in August that year; a daughter, Diana Barrymore, followed in March 1921. Soon after the birth, he began rehearsals for "Clair de Lune", which his wife had adapted from Victor Hugo's 1869 novel "The Man Who Laughs". Barrymore persuaded Ethel to play the role of the Queen – it was the first time the two had appeared on stage together in over a decade. The play was a critical flop, although the presence of the siblings ensured that it ran for over 60 performances. In 1921, Barrymore portrayed a wealthy Frenchman in