CHAPTER XX - CONFERRING BY RADIO

CHAPTER XXI - GAINING AN ALLY

CHAPTER XXII - FLYING TO THE RESCUE

CHAPTER XXIII - THE TABLES TURNED

CHAPTER XXIV - FRANK SAVES THE DAY

CHAPTER XXV - DANGER AT HAND

CHAPTER XXVI - THE NIGHT ATTACK

CHAPTER XXVII - SENORITA RAFAELA

CHAPTER XXVIII - THE FAIR TRAITRESS

CHAPTER XXIX - THREE CHEERS FOR THE RADIO BOYS

CHAPTER XXX - GOOD NEWS FOR ANXIOUS EARS

CHAPTER XXXI - CALM AFTER THE STORM

CHAPTER XXXII - MORE ADVENTURE AHEAD