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 Picaros Tintin and the Picaros Tintin and the Picaros () is the twenty-third volume of "The Adventures of Tintin", the comics series by Belgian cartoonist Hergé. The final instalment in the series to be completed by Hergé, in Belgium it was serialized in "Tintin" magazine from September 1975 to April 1976 before being published in a collected volume by Casterman in 1976. The narrative follows the young reporter Tintin, his dog Snowy and his friends Captain Haddock and Professor Calculus as they travel to the (fictional) South American nation of San Theodoros to rescue their friend Bianca Castafiore, who has been