They buried the evidence. We dug it back up.

Forbidden Secrets & Hidden Files of the World, Codex 2 is your ultimate guide to real-world government cover-ups, CIA experiments, declassified files, lost history, hidden archives, and global mysteries they never wanted you to find.

This second book in the bestselling Forbidden Secrets series goes even deeper into the shocking, suppressed, and true stories of modern and ancient history—featuring classified military programs, secret weapons, unsolved scientific anomalies, and documented human experiments backed by evidence, sources, and historical records.

From Cold War operations and CIA mind control to Nazi black ops, lost civilizations, and bizarre natural events, this book is a treasure trove of hidden knowledge.

Inside Volume II, you’ll explore:

• Plutonium injection experiments on unknowing hospital patients—verified Cold War human radiation testing
• The U.S. military’s Active Denial System (“heat ray”) and real directed-energy weapons used for silent crowd control
• Project 1794, the classified U.S. Air Force flying saucer design from the Cold War
• The Klerksdorp Spheres, ancient metallic artifacts with unnatural symmetry mined from 3-billion-year-old rock
• The Moberly–Jourdain Time Slip at Versailles, a time travel mystery studied by scholars for decades
• Medical experimentation on enslaved Black women, including the controversial legacy of Dr. J. Marion Sims
• The National Reconnaissance Office’s 9/11 drill, simulating a plane crash into a government building—hours before the real attacks
• Dozens of declassified CIA projects, military secrets, and underground programs still buried in official archives

This is not a conspiracy book. This is hidden history—with sources.