Glass Clouds

The people of Lewwww didn't remember their origin story. 

Their ancestors were able to build in the clouds because the clouds were made of glass. 

The stalk they had climbed had long turned to ash.

The kernels, about the size of a human head, bore little relation in appearance to kernels of the kind of corn the people of Lewwww were accustomed to, which grew from the nutrients in the clouds, not from the dirt of the all mother on the ground below. 

Agriculture in the sky was not so difficult, and freed the people from the seasons, which could be caught on the glass and drawn upon as necessary. 

The glass magic would not be possible without the kernels. 

Cultivated properly, produced more of their own in a self same process, providing nutrition both physical and spiritual. 

There were also forgeries. These were mostly made with the use of glass magic, an old kernel, and something of the same size or consistency. 

As time passed there were more forgeries and fewer real kernels, and the glass magic became weaker. 

Eventually the great birds penetrated the clouds, bigger than any birds seen when the people lived on the ground. They must have fed off the Corn King, and invaded the homes in search of more kernels. 

They had not the taste for the blood of the people yet. They killed where people got in the way of the kernels but they left the carrion. 

It came to the people, though no individual would admit it alone, to offer the forgeries up to the great birds, in a concentrated spot. And then it came to them to capture the birds and domesticate them. In this way the third man gained the power of flight, and spread out to other clouds, connecting the glass magic, and eventually returning to the ground and the dirt too.