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 the real target or is someone playing for even bigger stakes? Why do all your pens go missing and you keep finding unidentified keys at the back of the kitchen drawer? Let's go rescue a princess. She's a celebrity, for goodness' sake! Get her out of there...