Dos Santos: Codex 632 (2005)
Codex 632: The Secret of Christopher Columbus, written by Jose Rodrigues Dos Santos four years ago, got published in English two years ago, and the mass paperback edition came out this summer. Here is Booklists’s short summary:
Thomas Noronha, Portuguese history professor and cryptanalyst, receives a call from a shadowy American foundation, and before you can say Da Vinci Code, he’s deep into an investigation of the research done by a fellow scholar, recently deceased. Although ostensibly looking into the European discovery of Brazil, the other scholar was on the trail of a mystery related to Christopher Columbus, and Noronha’s own pursuit takes him to New York, Brazil, and Jerusalem, decoding clues from kabbalah and the symbology of the Knights Templar.
And the reason this book is mentioned here can be found on Israpundit‘s blog/review:
Columbus was a Jew named Salvador Fernando Zarco and was among those expelled from Spain in 1492, a rare triangular Kabbalistic signet indicates.