Heather Duncan the mother of Daniel Rand, the super hero known as Iron Fist died protecting him from a pack of wolves. She found herself in Feng-Tu, a realm of the dead for the inhabitants of K'un-Lun, where she was welcomed by Tuan, first of the Yama-Kings. Unable to face her death, she ran away and was picked up by Dhasha Khan, who entrapped her soul and turned her into his soldier, the Silver Dragon. When her son came to Feng Tu accompanying Jade, she fought and defeated him. During a second confrontation between them, her mask fell off and she was revealed as his mother. When she found herself unable to kill her son, Dhasha Khan destroyed her physical form.