If you're a Discworld fan, then you know that the flat world travels through space held aloft by four elephants carried atop the great celestial turtle, A'Tuin. Any fan of the classic, humorous fantasy by the late and great Terry Pratchett knows that there is magic all around us of the color octarine, that Dwarf Bread is better used as a weapon than a food ration, and that if you dove into the Ankh River for a swim, you'd be more likely to bounce off.