[ CHAPTER XXXI. WALTER CUNNINGHAM’S MISSION. ]

[ CHAPTER XXXII. SUSPENSE. ]

[ CHAPTER XXXIII. RESCUED. ]

[ CHAPTER XXXIV. NAT BARCLAY’S LETTER. ]

[ CHAPTER XXXV. PROFESSOR PUFFER’S DECLINE AND FALL. ]

[ CHAPTER XXXVI. PROFESSOR PUFFER BECOMES AN ALLY. ]

[ CHAPTER XXXVII. A BAD DAY FOR MR. MCCRACKEN. ]

[ CHAPTER XXXVIII. CONCLUSION. ]