Starting from a new perspective of analysis of the history and anchored on solid documental evidence, the author shows the scientific inconsistencies, errors in analysis, lies, and falsehoods of the official version of the history, traditionally attributed to the origins of Christopher Columbus, giving us new clues and new ways to interpret the documents. The legendary navigator is theoretically seen within the theatre of the political  rivalry between Spain and Portugal at the end of the XV Century. The book, “O Mistério Colombo Revelado” (The Mystery of Columbus Revealed) shows how Columbus was working as  a spy for King John II at the Spanish court and is the pinnacle of all the bibliography published about Columbus. This book is a decisive contribution to resolving the Christopher Columbus problem. This should makes us all proud because Manuel Rosa is "ours" he is Portuguese, Azorean and born right here on Pico."

After this introduction the author did a PowerPoint presentation showing the basic premise of the research and then with a questions and answers session followed by an autograph session. Afterwards Army general Simas admitted having been convinced that Columbus could only have been Portuguese and applauded the "precision of the research, the broad knowledge that Manuel Rosa seems to possess being able to answer to 'off the top of his head' precise details, dates and events and how they interact into this history."