The Dragon Inbetween. According to the Creation Myth, this Progenitor Dragon bound Khyber after she killed Siberys, creating the planet as we know it. Though different languages call it different things, Eberron is the common term for the planet on the Material Plane. It contains the continents Khorvaire, Sarlona, Argonnessen, Xen’drik, Aerenal, Everice, and Frostfell.