Most people have heard about the Flood that destroyed the whole Earth during the days of Noah.

It is also commonly known that God sent the Flood because sin had considerably increased on the Earth.

But few realize the real nature of that sin.

Genesis 6 tells us that angelic beings had come down to Earth, attracted by the beauty of the daughters of men, and were copulating with them!

That abominable inter-marriage produced a hybrid race of giants called Nephilim!

Those giants, overtime, became the great heroes of old.

This book makes a clear study of that phenomenon.