Phoenix Solution: Secrets of a Lost Civilisation

The secret of secrets

Dan Brown

Alchemy of secrets

Stephanie Garber

America Before: The Key to Earth's Lost Civilization

Graham Hancock

Codex

Tom Egeland

The Celestine Prophecy

James Redfield

The Lost Island

Douglas Preston

The Book of Phoenix

Nnedi Okorafor

The Ancient Paths

Graham Robb

Secret Prague

Martin Stejskal

Exposed, Uncovered, and Declassified

Michael Pye

Lost gold of the dark ages

Lost gold of the dark ages

Altar of eden

James Rollins

The lost labyrinth

Phenomena Enigma Bok 5

Ruben Eliassen

Gyllene Buddha

Clive Cussler

Lost Histories - Missing Cities, Treasures, Artefacts and People

Joel Levy

The discoveries

Alan P. Lightman

Talisman Sacred Cities, Secret Faith

Graham Hancock

A Secret atlas

Michael A. Stackpole

Forbidden History Prehistoric Technologies, Extraterrestrial Intervention, and the Suppressed Origins of Civilization

J. Douglas Kenyon

Lost Cities of Atlantis, Ancient Europe & the Mediterranean (Lost Cities Series)

David Hatcher Childress

Civilizations

Felipe Fernández-Armesto

Blood Secrets

Karen E. Taylor

Uriel's Machine

Christopher Knight

Celts

Juliette Wood

Lost Cities of Atlantis, Ancient Europe & the Mediterranean

David Hatcher Childress

Lost Cities and Ancient Mysteries of South America (Lost Cities Series)

David Hatcher Childress

Fingerprints of the Gods A Quest for the Beginning and the End

Graham Hancock

Earth to Spirit

David Pearson

Lost Cities of North & Central America

David Hatcher Childress

Lost Cities of Ancient Lemuria and the Pacific (The Lost City Series)

David Hatcher Childress

Lost Worlds

Alastair Service

Phoenix

Amos Aricha

Pyramidernes gåder

Max Toth

Erindringer om fremtiden : om fortidens uløste gåter

Erich von Däniken

Den hemmelighedsfulde videnskab

Colin Wilson

Jewels of the pharaohs

Cyril Aldred

Secret Doors of the Earth: The Hidden Influence of Ancient Aliens and Sacred Geography on Human History

Jacques Bergier

They found Atlantis

Dennis Wheatley

In search of lost worlds

Henri-Paul Eydoux