Dear David

A man has a weird dream about a child with a misshapen head appearing seated on a green rocking chair he kept in his bedroom. A few nights later, the man has a second dream in which a little girl tells him that David is dead; additionally, she explains the rules of interacting with David: He only appears at midnight, and if you see him, you can ask him two questions as long as you say the words "Dear David" first. However, you are never, ever to ask him three questions - he'll kill you if you do.