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
Prisoners of the Sun was published in book form by Casterman the year following its conclusion. Hergé continued "The Adventures of Tintin" with "Land of Black Gold", while the series itself became a defining part of the Franco-Belgian comics tradition. The two-part adventure was adapted into the 1969 film, "Tintin and the Temple of the Sun" by Belvision Studios, the first feature-length animated "Tintin" film. "Prisoners of the Sun" has also been adapted into two episodes of the 1990s television series "The Adventures of Tintin", a video game, and a 2001 musical stage production. Young reporter Tintin, his dog Snowy, and friend Captain Haddock