Opening Hook Paragraph:
I had no sooner entered the house than I knew something was wrong. Though I had never been in so splendid a place before—it was one of those big houses just off Fifth Avenue—I had a suspicion from the first that the magnificence covered a secret disturbance. I was always quick to receive impressions, and when the black iron doors swung together behind me, I felt as if I were shut inside a prison.
(My Mentor Howard Pease continues) This story is not to be an intellectual puzzle but a more emotional story, no doubt with chills and thrills. Though this paragraph gives other information, the emphasis from the first to the last sentence is on a hook opening.