Go to JoS Library. HPS Maxine's old sermons contain information about our creation.
According to what I read is :
Satan and our present enemy Gods where together.
Greys were created as a hybrid slave race. Greys themselves altered their genetics to the level where they cannot procreate sexually. Their mouths are atrophied because they don't use them. They talk telepathically. They don't have much emotions, mostly their emotions are of negative nature like resentment, jealousy, hate etc. Greys have a very strong sense of bonding with each other.
Satan discovered our planet and other ETs came with him here. HPS Maxine wrote that they wanted to mine Gold from earth. But HP Cobra wrote in one sermon that Gods didn't come to our planet for Gold. Anyway, they needed labourers to do the work.
They created primitive human race by genetic engineering. They took ovum from a primitive female ape like being and artificially inseminated it with sperm taken from one of the Nephilim. After trying many times, they were finally successful in creating a less intelligent primitive human race. They were not perfect but did the work. But according to legends, I don't know and understand why, they interbred with primitive human females. It resulted in birth of more intelligent and better human species.
Now Gods created different cultures and civilizations at different places on earth. They lived together with humans as their teachers and rulers.
But Greys resented and hated humans for their creation by genetic engineering. There were other gods who wanted to destroy our race when their purpose for our creation was fulfilled. They didn't need us anymore. But the Gods living with us didn't want to destroy us. There was a battle here on earth after which all gods left our planet. Our enemy Gods took sides with reptilian ETs. Grays also took their side as they hate us. Reptilian ETs were at war with Nordic Gods. You can say some Nordic Gods betrayed and left Satan.
Their was a battle in space and enemy Gods aka Reptilian ETs and enemy Nordics won. So our Gods were forced to back off.
Now enemy Reptillians want to harvest our souls for energy. And Satan and other gods are protecting us.