It gives you the option to run the setting at the time of the Mernii, the rise of the Bright empire, or the reign of the empress Terhali. Plus the Dharzi war; and the much later rise of the Young Kingdoms into the reign of both Yyrkoon and Elric. Which is a first for Elric based RPGs. Plus, it gives the option to play many more races such as a Karasim, Pukwadji or Na' ane, as well as the usual YK races. You can even be a wanderer of the time streams. How cool is that?