My name is Matthew LaCroix and I am an author and ancient history expert who has extensively studied lost civilizations, megaliths, earth cycles and ancient texts for two decades.
This journey of research and field investigations eventually led me across Türkiye, Egypt, Cambodia, and South America, where recurring patterns in sacred architecture, symbolic traditions, and ancient monuments began to reveal evidence of a deeper symbolic code and knowledge system preserved across cultures...
Today, I continue collaborating with researchers, experts, and field investigators through documentary work, international expeditions, and ongoing comparative research exploring this forgotten chapter of our story.
About the Author
Matthew LaCroix is an author and independent researcher focused on ancient civilizations, lost history, and early human knowledge systems. Raised exploring the mountains of northern New England, his early fascination with the natural world developed into a lifelong study of archaeology, geology, ancient history, philosophy, and esoteric texts.
He has spent more than two decades researching deep antiquity, ancient texts, symbolic traditions, megalithic masonry, and cyclical catastrophes, with a particular emphasis on early Mesopotamian and Egyptian history. LaCroix is the author of three previous books: The Illusion of Us, The Stage of Time, and The Epic of Humanity.
Released in 2025, The Missing Key: Ancient Code of a Lost Civilization represents the culmination of his research and extensive field investigation across Türkiye, Egypt, Cambodia, and South America, tracing a recurring code and ancient knowledge system woven into sacred architecture around the world.
Matthew has appeared on shows such as Ancient Civilizations and Beyond Belief on Gaia, The UnXplained on the History Channel, and hosted his own show called Mystery School of Truth on 4biddenknowledge TV.
