In which the travellers, after navigating a perilous underground path and encountering a revolving rocky barrier, find themselves trapped in a sunlit cave with no apparent escape, yet place their hope in the rescue powers of Princess Ozma and her enchanted Magic Belt. Patiently they await the appointed hour, and with a sudden vanishing, Dorothy and her companions are whisked away to the radiant Emerald City, greeted by its shimmering gates and curious citizens.