The Adventures of Tintin: The Secret of the Unicorn (video game) wants to get the third scroll, and that he is in fact Allan's boss. After a fight with Allan, Tintin gets the third scroll and heads off to Brittany, where he and Haddock earlier identified as Sir Francis' hideout. Learning that the scrolls contain the coordinates of the treasure of Red Rackham, Tintin and Haddock plan to head there, but Haddock is kidnapped by Allan, who uses him as a hostage to get the scrolls. After rescuing Haddock, Tintin discovers that the treasure is hidden within Marlinspike Hall. There they find the treasure and Thomson and Thompson arrest Allan and
Hergé's Adventures of Tintin while he was absent in the original book. Professor Calculus makes a cameo. Puschov accuses Tintin of robbing him, but in an airport. Tintin and Haddock hide in post office bags to get to Sussex, but Haddock gets in the wrong bag, and they are separated. Tintin later finds Haddock in England examining the plane. Dr. Müller is older and white-haired, and has a goatee. Ranko doesn't break his arm in this version, and even aids Tintin, Haddock and Snowy. This is the only story in the entire series that also exists in a black-and-white form, in animation mode. In