A passenger plane travelling to Europe, crashes into the Himalayas. It turns out that Tintin's young Chinese friend Chang was on board the aircraft. Tintin in Tibet (1960) is a story of pure friendship, without any of the usual villains: a tale of Tintin's desperate search to find his friend. The unusual narrative, which is much more introverted than those of other books in the Tintin series, tells the story that faith and hope are able to conquer all obstacles, and that pre-conceived judgements of others – in this case in regard to the yeti – are the fruit of ignorance.