Caresse moved to Italy and bought the Castello di Roccasinibalda which she turned into an artists' colony where the group 'World Academy of Art and Science' was established.

Caresse became deeply involved with the community of Terezin, a former Nazi concentration camp in Czechoslovakia. She dedicated her time and resources to supporting the survivors and preserving the memory of the Holocaust.

Caresse published her autobiography, 'The Passionate Years', which chronicled her extraordinary life, her artistic endeavors, and her relationships with some of the most influential figures of the 20th century. The book offered a candid and insightful look into her unconventional life.

Caresse Crosby died in Rome, Italy, at the age of 77. She left behind a legacy as a patron of the arts, a publisher, and an unconventional woman who defied societal norms and lived life on her own terms.