The madman turned all his attention to the youth, who, standing at the rail of the derelict ship, was unaware of his extreme danger. Like a beast of prey the older man crept stealthily toward his intended victim... In a remote European kingdom, plotters had moved toward the murder of an old king and his young heir, Michael. But the lad escaped, and, through a series of the chilling, heart stopping adventures only Edgar Rice Burroughs could have written,...