[XVI. THE FEAST OF THE MAMMOTH.][XVII. THE COMRADES.][XVIII. LOVE AND DEATH.][XIX. A RACE WITH DREAD.][XX. THE FIRE COUNTRY.][XXI. THE WOOING OF LIGHTFOOT.][XXII. THE HONEYMOON.][XXIII. MORE OF THE HONEYMOON.][XXIV. THE FIRE COUNTRY AGAIN.][XXV. A GREAT STEP FORWARD.]