Captain Haddock home, Marlinspike Hall (or "Moulinsart" in the original French). Harry Thompson, author of "Tintin: Hergé and his creation", writes that the introduction of this large and luxurious country house was "to provide a suitable ancestral home for Tintin and himself to move into." To achieve this in terms of the plot, Hergé also details Haddock's ancestry, something Thompson regards as distinctive: "Haddock is the only regular character whose relatives turn up in the Tintin stories at all (if one discounts Jolyon Wagg and his dreadful family)." As Haddock's role grew, Hergé expanded his character, basing him upon aspects of friends,
Tintin and the Lake of Sharks cave. He then floods the chamber Tintin and the children are in with water. As soon as the water has reached a device high on the wall, the base will self-destruct. Haddock manages to regain control of the disabled submarine and makes his way to the surface, encountering Thompson and Thomson and the chief of the Syldavian police in a patrol boat. Down below, with all of his men having evacuated the base, Rastapopoulos and his lieutenant leave the base in the submarine. Tintin and the children manage to get free and escape through an airlock in life jackets, just