Casa do Arcano is part of the set of valences that make up the Ribeira Grande Museum Nucleus - a polynucleated heritage structure that, since 1986, has been studying, conserving and explaining to the community the space and time in Ribeira Grande since its formation and geological evolution. , going through its historical, geographical, anthropological and sociological aspects, until the present.
The Arcane House is a space where it is intended to reveal the testimony of Mother Margarida's life and work, which is why some of her spaces (such as the kitchen) were kept unchanged and the masonry and ceilings were safeguarded as much as possible. allowing the knowledge of a city of yore. The various paintings, arranged on the three floors of the furniture/exhibitor, are made up of figurines, all of them hand-shaped and made of various materials such as rice flour, animal gelatin, gum arabic and ground glass.
According to the Tribute of Gratitude, written by José Maria da Câmara Vasconcelos, her brother's brother-in-law, who came to A União newspaper on December 1858, the author wanted to achieve a triple purpose: to praise God, to entertain and to teach catechesis.