QUETZALCOATL

QUETZALCOATL 
"Not a hearing—nobody knows—I alone have the secret—that’s why I and Quetzalcoatl and Huitzilopotchli will rule the world alone—I and they, if I choose to let them. . . . But I must have experimental subjects—subjects—do you know whom I’ve chosen for the first?”'

"'Thou too, Ipalnemoan, By Whom We Live! I hear, I hear! I see, I see! Serpent-bearing Eagle, hail! A message! A message!"'
H.P. Lovecraft & Adolphe de Castro, The Electric Executioner

"One of the great gods of ancient Mesoamerica, Quetzalcoatl is a miraculous synthesis of serpent and bird.The Postclassic Nahuatl name Quetzalcoatl derives from the Nahuatl terms for the emerald plumed quetzal and the serpent, or coatl. Thus the term could be glossed as "quetzal serpent", although the serpent is specifically a rattlesnake." "...bicephalic serpents covering the body..." "During the Late Postclassic period, Quetzalcoatl usually appears in human form, often with a conical cap."
Mary Miller & Karl Taube, An Illustrated Ditionary Of the Gods and Symbols Of Ancient Mexico and the Maya

"Eventually Quetzalcoatl was transformed into one of the 
gods of the creation (Ipalnemohuani)."
Webster's Dictionary

Visual reference.  
The British Musuem, London, Lintel 15, Structure 23, Yaxchilan