Trapped by an underground rock fall, Eve and Paul stumble upon the bizarre world of the "Fair-eyes", a subterranean civilization whose society and foibles are curiously reminiscent of our own. The kidnap of a princess catapults the children into a desperate and dangerous rescue mission-but is everything as it seems? Could the pathologically stupid Goblins really have hatched this plot on their own? Are there darker forces at work? Was the princess...