CONTENTS
I [Whistling Mystery] 1 II [Contact] 10 III [Friendly Enemies] 20 IV [A Glorious Fight] 27 V [A Good Show] 34 VI [Plane Wrecked] 40 VII [A Night’s Adventures] 49 VIII [A Look at a Mystery Plane] 60 IX [The Tagged Monkey] 70 X [“Hist There! You!”] 78 XI [Night Fighters] 86 XII [Up at Dawn] 96 XIII [The Jet Plane] 105 XIV [Ted’s Gony] 115 XV [The Secret Book] 125 XVI [Mostly Memories] 134 XVII [Voices in the Night] 143 XVIII [Luck, Pals and Providence] 152 XIX [Mysteries Deepen] 158 XX [A Ship from Some Other World] 165 XXI [Mary Brown from the U. S. A.] 175 XXII [Star of the Mist] 183 XXIII [Hot Cannibal Rivets] 192 XXIV [Twilight Battle] 200 XXV [Jack’s New Gunner] 207 XXVI [Jack’s Jet Plane Wins Its Way] 217 XXVII [Stratosphere Tactics] 225 XXVIII [The Jet Plane’s Last Battle] 234