She is known for her work in adult prose fiction and notably for her novel El desconocido [1] Carmen de Rafael Marés was born into a cosmopolitan family.

Part of her education was received in the United Kingdom and undoubtedly some of her experiences there were reflected in her books.

"Cosmonaut Óscar" tells the story of a boy and his pet Goose Kina, who decide to build a rocket.

Although the adventure ends up being considered "just a dream", the truth is that Oscar travelled to other planets where he met socially advanced civilizations.

This allowed for the introduction of a series of highly topical themes and was surprisingly advanced for its time.