The book The Kingdom That Was Not of This World: Chronicle of an Unproclaimed Republic was published in 2015 by Valentina Publishers. This non-fiction work was written by Marcos Costa, and I read it in the Kindle version. Marcos Costa initially considered becoming an architect but soon changed his mind and pursued History at UNESP – Assis campus. He obtained a Master’s and a Ph.D. in Social History, also from UNESP.
Marcos Costa is a historian, university professor, researcher, and writer. He has authored numerous articles published in academic journals, as well as the books The Obscure Book of the Discovery of Brazil, The History of Brazil for Those in a Hurry, and The Man Who Did Not Want to Be Immortal.