Matthew 24:37 But as the days of Noe were, so shall also the coming of the Son of man be.
And the Nephilim were the fallen ones in the days of Noe.
I'm presuming this is all imaginative malarkey, but truly queer things are going on nowadays - so keep your eyes open. Never a time was more appropriate for Christ's warning:
Matthew 24:42 Watch therefore: for ye know not what hour your Lord doth come.
Wow!! And Amen to that!!