Tintin and Captain Haddock receive a mysterious summons from Syldavia, but all is revealed when they are welcomed by none other than Professor Calculus. He is working on a top-secret mission to develop a nuclear moon rocket, but foreign spies are lurking around every corner! The world's most famous travelling reporter discovers that Professor Calculus is building a space rocket. Tintin and Captain Haddock are amazed to find that Professor Calculus is planning a top-secret project from the Sprodj Atomic Research Centre in Syldavia. And before our intrepid hero knows it, the next stop on this adventure is ...Space.
