CHAPTER 1MY UNCLE MAKES A GREAT DISCOVERY
CHAPTER 2THE MYSTERIOUS PARCHMENT
CHAPTER 3AN ASTOUNDING DISCOVERY
CHAPTER 4WE START ON THE JOURNEY
CHAPTER 5FIRST LESSONS IN CLIMBING
CHAPTER 6OUR VOYAGE TO ICELAND
CHAPTER 7CONVERSATION AND DISCOVERY
CHAPTER 8THE EIDER-DOWN HUNTER—OFF AT LAST
CHAPTER 9OUR START—WE MEET WITH ADVENTURES BY THE WAY
CHAPTER 10TRAVELING IN ICELAND
CHAPTER 11WE REACH MOUNT SNEFFELS—THE "REYKIR"
CHAPTER 12THE ASCENT OF MOUNT SNEFFELS
CHAPTER 13THE SHADOW OF SCARTARIS
CHAPTER 14THE REAL JOURNEY COMMENCES
CHAPTER 15WE CONTINUE OUR DESCENT
CHAPTER 16THE EASTERN TUNNEL
CHAPTER 17DEEPER AND DEEPER—THE COAL MINE
CHAPTER 18THE WRONG ROAD!
CHAPTER 19THE WESTERN GALLERY—A NEW ROUTE
CHAPTER 20WATER, WHERE IS IT? A BITTER DISAPPOINTMENT
CHAPTER 21UNDER THE OCEAN
CHAPTER 22SUNDAY BELOW GROUND
CHAPTER 23ALONE
CHAPTER 24LOST!
CHAPTER 25THE WHISPERING GALLERY
CHAPTER 26A RAPID RECOVERY
CHAPTER 27THE CENTRAL SEA
CHAPTER 28LAUNCHING THE RAFT
CHAPTER 29ON THE WATERS—A RAFT VOYAGE
CHAPTER 30TERRIFIC SAURIAN COMBAT
CHAPTER 31THE SEA MONSTER
CHAPTER 32THE BATTLE OF THE ELEMENTS
CHAPTER 33OUR ROUTE REVERSED
CHAPTER 34A VOYAGE OF DISCOVERY
CHAPTER 35DISCOVERY UPON DISCOVERY
CHAPTER 36WHAT IS IT?
CHAPTER 37THE MYSTERIOUS DAGGER
CHAPTER 38NO OUTLET—BLASTING THE ROCK
CHAPTER 39THE EXPLOSION AND ITS RESULTS
CHAPTER 40THE APE GIGANS
CHAPTER 41HUNGER
CHAPTER 42THE VOLCANIC SHAFT
CHAPTER 43DAYLIGHT AT LAST
CHAPTER 44THE JOURNEY ENDED