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".
Tintin and the Golden Fleece be an old friend of Paparanic and offers to buy the boat for "sentimental" reasons, but the huge amounts that he offers makes Tintin suspicious and on his advice Haddock turns the offer down. During their stay in Istanbul, a stranger named Malik offers to take Tintin and Haddock on a guided tour during which there are two attempts on their lives. This makes them all the more determined to find out what is going on. One of the clauses of Paparanic's will was that Haddock, on accepting the ship, should also fulfill his current obligations. The next day Haddock