The Adventures of Tintin partially deaf physicist and a regular character alongside Tintin, Snowy, and Captain Haddock. He was introduced in "Red Rackham's Treasure", and based partially on Auguste Piccard, a Swiss physicist. The leading characters do not initially welcome his presence, but through his generous nature and his scientific ability, he develops a lasting bond with them. Eventually, by the end of "Land of Black Gold", he becomes a resident of Marlinspike Hall. Normally mild-mannered and dignified, Calculus occasionally loses his temper and acts in a spectacularly aggressive manner in response to actual or perceived insults, such as when Captain Haddock belittles his
Tintin in Tibet died in a plane crash in the Himalayas. Convinced that Chang has survived, Tintin leads Snowy, Captain Haddock and the Sherpa Tharkey across the Himalayas to the plateau of Tibet, along the way encountering the mysterious Yeti. Following "The Red Sea Sharks" (1958) and its large number of characters, "Tintin in Tibet" differs from other stories in the series in that it features only a few familiar characters and is also Hergé's only adventure not to pit Tintin against an antagonist. Themes in Hergé's story include extrasensory perception, the mysticism of Tibetan Buddhism, and friendship. "Tintin in Tibet" has been