Argues that Christopher Columbus was not the son of an Italian wool-dealer, but was in fact a Portuguese spy in the Spanish court

In the year 1444, near long-lost Constantinople, a Christian monarch treacherously breaks his truce with the Muslims, but Fate double crosses him. He is crushed in battle. All of his personal knights are slain, and he vanishes without a trace. Some years later, on Madeira Island, 2,500 miles to the west, a mysterious Knight of Saint Catherine of Mount Sinai marries into the Portuguese elite . . . and has a son. Astonishing as it may seem, these two impossibly remote events have been connected -- and the clouded genesis of Christopher Columbus is thereby once and forever resolved. The key to unlocking the mystery was waiting in a place where nobody had ever looked before. 25 years of research has pieced together a stunning array of artifacts and data, from one end of Europe to another, from Asia, Africa and the Americas: a chapel ruin, a ceiling mural in a private palace, DNA test results, an impressive diversity of documents, keenly analyzed . . . and a sword, unearthed by a 19th century Bulgarian peasant, that found its way to a museum in Saint Petersburg. The study and comparison of carefully censored State archives also helped explain this life -- hitherto enshrouded in the deceitful machinations of power politics, false identities, and false discoveries in the Age of Exploration. Myth has at last been separated from fact, exposing what actually transpired. Being extremely fond of writing memoirs, journals and letters, the man known as Columbus left a great deal of this overwhelming proof himself. Many other clues have been painstakingly gathered and analyzed. Some were cryptically displayed in the details of portraiture and esoteric writings, others in the most obvious features of one of the greatest works of Spanish Baroque drama, on heraldry, on a gravestone, via signatures and pseudonyms. What emerges is the picture of a consummate double-agent, with a bold and grandiose agenda. Enter this 500-year-old labyrinth and discover the unimaginable: a medieval conspiracy so audacious, so massive, and so well executed that it fooled the world for half a millennium.The Christopher Columbus you knew will be history.

The authors maintain that Columbus never used that name in his writings. He used the name Colon. They point to medical and scientific data they believe proves that Colon was a pseudonym for Salvador Fernandes Zarco.

Although much has been written about Columbus's life in Italy and Spain, little has been written about his formative years in Portugal. This work is the first book-length analysis of Columbus's stay in Portugal and Madeira from 1476 to 1485 and his later experiences in the Portuguese islands of the Azores and the Madeiras. The work stresses the influence the Portuguese had in educating Columbus about the sea, and it depicts his famous voyage to the New World as a logical sequence of the pioneering voyages of the Portuguese in the North Atlantic and along the West Coast of Africa. The work attempts to sort legend from fact and debunks the many myths about Columbus's stays on the island of Madeira.

No gamble in history has been more momentous than the landfall of Columbus's ship the Santa Maria in the Americas in 1492 - an event that paved the way for the conquest of a 'New World'. The accounts collected here provide a vivid narrative of his voyages throughout the Caribbean and finally to the mainland of Central America, although he still believed he had reached Asia. Columbus himself is revealed as a fascinating and contradictory figure, fluctuating from awed enthusiasm to paranoia and eccentric geographical speculation. Prey to petty quarrels with his officers, his pious desire to bring Christian civilization to 'savages' matched by his rapacity for gold, Columbus was nonetheless an explorer and seaman of staggering vision and achievement.