[ CHAPTER V. OUR INTRODUCTION TO MARS. ]
[ CHAPTER VI. A REMARKABLE PEOPLE. ]
[ CHAPTER VII. RAPID TRANSIT ON MARS. ]
[ CHAPTER VIII. THORWALD PUZZLED. ]
[ CHAPTER IX. THORWALD AS A PROPHET. ]
[ CHAPTER X. MORE WORLDS THAN TWO. ]
[ CHAPTER XI. MARS AS IT IS. ]
[ CHAPTER XII. WE REACH THORWALD’S HOME. ]