Contents
CHAPTER PAGE I [Peril in Paradise] 1 II [A Disturbing Call] 5 III [Worried Twins] 11 IV [Aloha!] 18 V [Detective Biff] 25 VI [The Letter] 33 VII [An Important Find] 41 VIII [The Police Call] 51 IX [Mysterious Message] 61 X [Starting a Search] 70 XI [Wharf Rats] 76 XII [Bomb Away] 87 XIII [A Near Miss] 97 XIV [Storm!] 108 XV [Men Missing] 117 XVI [Held Prisoner] 123 XVII [A Dangerous Dive] 130 XVIII [Exploring the Depths] 141 XIX [Reunion] 152 XX [Dawn Attack] 160 XXI [A Human Fish] 166 XXII [Check-Out] 175