Michael Moorcock's Elric

Elric, albino Emperor of the ancient island of Melnibone, has reigned over his people for millennia, witness to their decadence and degeneration. But Elric is ailing. To stave off disease and death, he relies on a dangerous mixture of drugs and magic. His cousin Yyrkoon, despising Elric's weakness, plots to undermine Elric's authority and seize the Ruby Throne. When his people are threatened by a pirate attack, Elric hopes defeating the pirates will restore his authority. But in the process, he will be forced to reveal the depth of his allegiance to the dark Arioch, the most powerful of the Lords of Chaos...