Sentence:  “Suppose someone pops in?” “Don't be silly. Mrs Cream is working on her book. Phyllis is in her room, typing Upjohn's speech. Wilbert's gone for a walk. Upjohn isn't here. The only character who could pop in would be the Brinkley Court ghost. If it does, give it a <WSD>cold</WSD> look and walk through it. That'll teach it not to come butting in where it isn't wanted, ha ha.” 
Meaning of the word marked with <WSD> tags:  Unfriendly, emotionally distant or unfeeling.