Semiramis is the wife of King Nimrod and mother of Mardon. She first appears in Enoch's Ghost, where she tries to tempt Elam off his path in the Bridgelands. She is a shady character whose intentions are not originally clear. She also appears in Second Eden, giving Billy Bannister information about the "dragon" Arramos, which is true, but intended to lead Billy, Elam, and the villagers into a wrong course of action. Ultimately she is revealed to be plotting with her son to connect Hades, Second Eden, and Earth, and it is her supernatural "rope" which allows this plan to come to near fruition. Ultimately, she and Mardon are defeated, but the readers are never told their actual fate.