
by Javier Sierra · PLAZA & JANES · tapa dura · ISBN 9788401379635

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«En busca de la edad de oro» is the historical essay by Javier Sierra, published by Plaza & Janés in hardback (384 pages, in Spanish).
The author of La cena secreta investigates historical enigmas without official answers: the Giza pyramids aligned with Orion's Belt, the tunnels beneath Cuzco, and hidden messages in ancient texts. A journey through vanished civilizations that raises extraterrestrial influences on their legacy.
Subtitled «Los misterios de las civilizaciones perdidas», the book was published on 10 November 2006.
For readers interested in historical enigmas, ancient civilizations, and popular science with theories about extraterrestrial influences.

Javier Sierra Albert is a journalist, writer and researcher who studied journalism at the Complutense University of Madrid.
