PROLOGUE--The First Cruise of the _Astronef_. Chapter I. Chapter II. Chapter III. Chapter IV. Chapter V. Chapter VI. Chapter VII. Chapter VIII. Chapter IX. Chapter X. Chapter XI. Chapter XII. Chapter XIII. Chapter XIV. Chapter XV. Chapter XVI. Chapter XVII. Chapter XVIII. Chapter XIX. Chapter XX. Epilogue List of Illustrations "THE EARTH, THE EARTH--THANK GOD, THE EARTH!" A HIDEOUS SHAPE ROSE OUT OF THE WATER BEHIND THEM IT TOOK THE STRANGE-WINGED CRAFT AMIDSHIPS SNOW PEAKS AND CLOUD SEAS CAME FORWARD TO MEET THEM WITH BOTH HANDS OUTSTRETCHED WHOLE MOUNTAIN RANGES OF GLOWING LAVA WERE HURLED UP MILES HIGH WITHOUT ANY APPARENT EFFORT HE RAISED HER ABOUT FIVE FEET FROM THE FLOOR THE HUGE PALELY LUMINOUS EYES LOOKED IN UPON THEM.