3rd time I have been warned about this...really starting to believe it...

I strongly believe that there is going to be an ET or the like, that will be presenting their species to us with false gifts (possibly a resource we are very fond of), and empty promises. The sources reiterating this are Bashar, The Hidden Hand Dialogue and this Crop Circle:

"Beware the bearers of false gifts and their broken promises  
Much pain but still time
There is good out there
We oppose deception
Conduit closing."

Here is another related Crop Circle & maybe the species who left us this message will be the ones making 1st contact with us...

 

A fantastic article dissecting the message:
The Two Most Important Alien Messages: Decoded

Akin to Adam & Eve and Free Will....WE MUST NOT ACCEPT THE GIFTS & PROMISES!!!!
Humanity/Ascension may depend on it!

Bashar breaking it down: