Chapter Titles: (1) The Vanished Jewels (2) Suspected (3) The Capture (4) Facing Death (5) The Demon of the Sky (6) The Silent Feud (7) The Race for Freedom (8) Secret Adventure (9) A Strange Discovery (10) House of Mystery (11) Garden of Surprise (12) The Vault of Mystery (13) The Leap (14) The Sky Monsters (15) Floating Signal (16) Prisoner of Love