Right! The Inca disc is a fictional artifact!
The Inca disc is an artifact created by the author for the purposes of the book Chloe Diggins and the Eternal Emperor. It is true that the Emperor Atahualpa, pictured in the drawing to the right, was executed in the square of Cajamarca in 1533. But there is no legend of a golden disc passed down from emperor to emperor...at least not that we know of!
Click here to see examples of real Inca artifacts!