Red Rackham's Treasure (1944; French: Le Trésor de Rackham le Rouge) is the twelfth volume of The Adventures of Tintin, the series of comic albums by Belgian cartoonist Hergé. Tintin and Captain Haddock believe that the treasure of pirate Red Rackham is in the remains of the sunken ship, the Unicorn, and they launch an expedition to find it. The story was first serialized in Le Soir Jeunesse, children's supplement to Belgium's leading newspaper Le Soir, from 19 February 1943 to 23 September 1943 before being published in book form the following year. Red Rackham's Treasure is the second volume in a two-part adventure begun in The Secret of the Unicorn (1943). The book is notable for its introduction of main character Professor Calculus. It is the best-selling book in the Tintin series. In the previous adventure, The Secret of the Unicorn, Tintin and Captain Haddock discover three parchments revealing the location of the Unicorn, a 17th-century navy ship commanded by Haddock's ancesto.. …