Dark Waters (Once Upon a Time) is to take Snow's heart. The Land of Untold Stories is revealed to be the Mysterious Island from the book as the same name. The "Nautilus" is based on the submarine from "Twenty Thousand Leagues Under the Sea". Captain Nemo based on the protagonist from Jules Verne's novel "Twenty Thousand Leagues Under the Sea". Hook refers to the giant squid that attacks him as a kraken. The kraken is a legendary sea monster of giant size that is said to dwell off the coasts of Norway and Greenland. The episode posted its lowest numbers so far in the series, as
Twenty Thousand Leagues Under the Sea Prince Dakkar), it is muddied by the presence of several irreconcilable chronological contradictions between the two books and even within "The Mysterious Island." Verne returned to the theme of an outlaw submarine captain in his much later "Facing the Flag". That book's main villain, Ker Karraje, is a completely unscrupulous pirate acting purely and simply for gain, completely devoid of all the saving graces which gave Nemo—for all that he, too, was capable of ruthless killings—some nobility of character. Like Nemo, Ker Karraje plays "host" to unwilling French guests—but unlike Nemo, who manages to elude all pursuers, Karraje's career of