Episode Title:The Calculus Affair Part 1.Episode Description:During a thunderstorm, Tintin and Captain Haddock shelter in Marlinspike Hall. During the storm, several items of glass and china within the house break for no apparent reason. An insurance agent, Jolyon Wagg barges into the hall seeking shelter. He claims that all the windows of his car have somehow blown to bits. More mysterious incidents of glass breaking occur. After the storm, gunshots are heard outside. Professor Calculus returns from his laboratory with bullet holes in his hat. Investigating outside, Tintin discovers a wounded man in the grounds. He disappears before he can be questioned.