Douglas Darden laughter was the laughter of three young girls, who were, in essence, their clients: the fourteen year-old twins, Cass and Polly, and their nineteen-year-old friend, Helen. Cass and Polly are most likely feminized renderings of the celestial twins of Greek mythology, Castor and Pollux (better known as Gemini), and their sister, Helen of Troy. Many of his original sketches and drawings for Oxygen House are now owned by the Museum of Modern Art, along with a select few of "Sex Shop" drawings; gifts of Darden's widow. The remainder of his drawings are held at the Avery Architectural and Fine Arts
Castor et Pollux Castor sings the aria "Séjours de l'éternelle paix": the beautiful surroundings cannot comfort him for the loss of Telaira, neither can a Chorus of Happy Spirits. He is amazed to see his brother Pollux, who tells him of his sacrifice. Castor says he will only take the opportunity to revisit the land of the living for one day so he can see Telaira for the last time. Castor returns to Sparta. When Phoebe sees him, she thinks Pollux is dead for good and commits suicide so she can join him in the Underworld. But Castor tells Telaira he only plans