They were known only as The Nine – grim, ancient rulers who thirty thousand years ago had discovered the key to eternal life and had ever since held the world in thrall. Doc Caliban had once been their servant and had shared their secrets. Now, appalled by their tyranny he had turned against them, daring to challenge their centuries-old supremacy. Together, with two henchmen whose superhuman skills match his own, Caliban sets out on the trail of the deadliest of The Nine – the mad goblin Iwaldi, the very incarnation of  evil. Originally published as The Mad Goblin.