The Secret of the Unicorn Rackham's looks and costumes were also inspired by the character, Lerouge, who appears in C. S. Forester's novel, "The Captain from Connecticut", and by the 17th-century French buccaneer Daniel Montbars. The name of Marlinspike Hall— in French—was based upon the name of the real Belgian town, Sart-Moulin. The actual design of the building was based upon the Château de Cheverny, albeit with the two outer wings removed. In introducing Francis Haddock to the story, Hergé made Captain Haddock the only character in the series (except Jolyon Wagg, introduced later) to have a family and an ancestry. "The Secret of the
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