[CHAPTER XII. WHAT HAPPENED TO ROY.]

[CHAPTER XIII. PLOT AND COUNTERPLOT.]

[CHAPTER XIV. HOW THEY WORKED OUT.]

[CHAPTER XV. WHAT MORTLAKE DID.]

[CHAPTER XVI. THE MISSING SIDE-COMB.]

[CHAPTER XVII. JIMSY'S SUSPICIONS ARE ROUSED.]

[CHAPTER XVIII. A BOLT FROM THE BLUE.]

[CHAPTER XIX. THE GATHERING OF THE MAN-BIRDS.]

[CHAPTER XX. AN UNEXPECTED MEETING.]

[CHAPTER XXI. THE START OF THE SKY CRUISE.]