Read Demon Lord III - Grey God Storyline:
Bane could free an enslaved light goddess if he’s prepared to wield the shadows again. When Kayos, a Grey God from the times before reckoning, returns to Myrthran, he discovers that Bane is tar’merin – incorruptible. The Demon Lord, however, has no wish to venture into the trackless and dangerous God Realm, or take up the hated dark power, but if he refuses, a young goddess may die…Pages of Demon Lord III - Grey God :