Question

why is the purpose of Mr lamb in telling diary the story of a man who locked himself in a room and never left it​

Answer 1

Mr Lamb narrates to Derry a story of a man who locked himself up in his room. The man was afraid of everything and was scared that everything was trying to kill him. ... Lamb narrated this story to Derry to make him understand that he can not fight destiny or keep himself self by avoiding public glare or going out.