Captain Haddock the Picaros", when Professor Calculus 'cures' him of his taste for alcohol. In the adventure "Secret of the Unicorn" (and continuing in "Red Rackham's Treasure") he and Tintin travel to find a pirate's treasure captured by his ancestor, Sir Francis Haddock (François de Hadoque in French). With newfound wealth and regaining his ancestral home Marlinspike Hall, Captain Haddock becomes a socialite; riding a horse, wearing a monocle, and sitting in a theatre box seat ("The Seven Crystal Balls"). He then evolves to become genuinely heroic, volunteering to sacrifice his life to save Tintin's own in the pivotal "Tintin in Tibet".
The Secret of the Unicorn and in doing so "deals with the meanings of symbolic relations within personal life". Discussing the character of Sir Francis Haddock, he states that this ancestral figure resembles both Tintin and Haddock, "the foundling and the bastard", thus making the duo brothers as well as close friends. He adds that when Captain Haddock reenacts his ancestor's fight with Rackham, he adopts his "very soul, his "mana", and is transformed in the process." Apostolidès also discusses Red Rackham, noting that the name "Red" conjures up "the forbidden colour of blood and wine" while "Rackham" combines "raca" ("false brother") with the French