Marie Corelli's first novel, published in 1886. A Romance of Two Worlds is an urban fantasy that doubles as a religious treatise on Corelli's form of spirituality -- more or less a blend of Christianity and spiritism. Corelli's Author Avatar is afflicted with debilitating depression and anxiety and takes a sabbatical in Cannes to try to lift her spirits. Here, she encounters an Italian artist named Raffaello Cellini, who seems to possess some bizarre power that is gradually improving her health. Cellini refers to her to a mysterious man named Heliobas for further treatment, which begins her journey into finding the truth about the nature of life, God, and the heavens.