of the Unicorn, the audience is shown someone watching them leave, then breaking into the flat. In the book, the robbery is only revealed when Tintin arrives home to find his model Unicorn missing. Nestor knocks Tintin unconscious in the episode whereas the hit on the head only produces a sore spot in the books. G. Bird's role in the television series is downplayed. In the books, Tintin is kidnapped and taken to Marlinspike Hall by two unknown "delivery men," while the Bird brothers themselves kidnap him in the episode. At the end of the episode, the Bird brothers share what happened at Marlinspike Hall and are later arrested at the Hall. In the book, G. Bird tells the story while Max escapes and is arrested at the national border. "Red Rackham's Treasure" Tintin has a smooth voyage in the shark submarine while in the book he is in peril when the submarine gets snarled with seaweed. When Professor Calculus first meets Tintin and Haddock, he does not mention that he is a little hearing impaired. This is only discussed later when he uses an ear trumpet in "Destination Moon." In the interest of time, the consequences of the press exposure are limited to meeting with Professor Calculus, meaning that Thompson and Thomson never visit the residence with Tintin and Haddock. Thompson and Thomson's holiday at a farm is removed. The treasure hunters do not return to the island to dig around the large wooden cross, confused about where the treasure could be buried. In the book, Haddock writes a message on the wall to tell Calculus that they are not interested in his invention. Rather, the Captain marks and X on the crate containing the submarine assembly. This allowed the animators to avoid having to make multiple written translations for each language in which the show was aired. "The Black Island" The gorilla Ranko crushes the rock Tintin throws at him. This show of strength does not appear in the book. The East down Fire Brigade's response to the burning of Müller's residence takes place at nightfall rather than during the daytime. The Counterfeit Ring based at the castle only consists of Müller, Ivan and Puschov, whereas in the book, there are an additional two unidentified members residing at the castle. The struggle to find the fire station key was also omitted. In the book, Ivan the goon usually