Thank you, Paul, for your amazing work and for working with Mauro Biglino. Can you tell us why the Powerful Ones left the planet so abruptly?

Hi.
There were two races of E.T.s.
There were the familiar Anunnaki, and there were another E.T. race who guided mankind in the upper sources of the Tigris and Euphrates.
These second E.Ts, who, were here before the Anunnaki were called the 'Lugulyra' by the people in Anatolia and Armenia.
In Turkish, lug means 'Great' and Ulyra means 'Ultra', so the Lugulyra were The Ultra Great ones.

They are still here, and go by the name Nordics in modern ufology. The Greys are their synthetic servants.
Some departed Anatolia and settled in Scandinavia.
Paul suggests this.
There is a Celtic god called Lugh, which I believe was one of them, naming himself 'The Great one' in Anatolian.

The Anunnaki departed Earth about 700 BC. Their spaceship was on a 3600 year orbit of the sun.
The gold they desired was used as a radiation shield inside the hull of their ship.