All three parts of Jules Verne's master work with 75 illustrations: Stranded on the Mysterious Island, Cyrus Smith, Neb, Spilett, Pencroft and Herbert, endure bad weather and stay alive through multiple adventures; they even domesticate an orangutan —Master Jup. There is a mystery on the island in the form of unseen and unexpected events which are responsible for Cyrus' survival after falling from the balloon, a mysterious rescue of Top from a dugong, the appearance of a box of supplies and equipment, and other seemingly inexplicable occurrences. Then, the islanders find a message in a bottle directing them to rescue a castaway on Tabor Island. On their return trip to Lincoln Island, Spilett, Pencroft and Herbert lose their way in a tempest but are guided back to Granite House by a mysterious signal fire ... After settling down the castaways begin to civilize the island; along the way, it becomes more and more evident that there is a presence, a mysterious genie who seems to be watching over Cyrus Smith and his companions, and helps them in all difficult, even tragic circumstances. In this 3rd book of the Mysterious Island, we discover the origin of this mysterious protector.