"The reptilian and other entities, which are manipulating our world by possessing "human" bodies, operate in frequencies between the Third and Fourth densities. These are referred to as "hidden spaces and planes unknown to man", in the apparently ancient
Emerald Tablets, which I quote from in
"Children of the Matrix". For simplicity, I refer to this "between world" in my books as the lower fourth dimension.
It is from here that they police our vibrational prison - the Matrix - and seek to addict and restrict us to the dense physical senses. This world was once far less dense than it is today and the "fall" down the frequencies, caused by the manipulation of incarnate consciousness and DNA infiltration, has made it so much more difficult to maintain a multi-dimensional connection while in physical form. We are now in a cycle of change when the vibration of this "world" will be raised out of dense physicality and return to where it once was. In doing so, the reptilians' ability to manipulate our physical form will be removed and this is why they are in such a panic at this time to prevent this shift from opening the vibrational prison door.
The reptilians and other manipulating entities exist only just outside the frequency range of our physical senses. Their own physical form has broken down and they can no longer re-produce. Thus they have sought to infiltrate human form and so use that to exist and control in this dimension. They chose the Earth for this infiltration because it most resembles in vibration the locations from which they originate. These reptilians are addicted to the dense physical "world" and the sensations it offers and they have no desire to advance higher. Their aim in this period is to stop the Earth and incarnate humanity from making the shift from dense physical prison into multi-dimensional paradise."
More here (you won't believe it - or you might !!!!!

) :
http://www.davidicke.com/