Here is a 10-word-per-sentence opening for a murder mystery story: The night was dark and stormy. A man walked alone down an alley. Lightning flashed as thunder rumbled overhead. He stumbled over something large lying in the road. Looking down he saw a body crumpled on the ground. Kneeling he checked for a pulse but found none. Realizing the person was dead he ran to get help. After calling the police he waited nearby for them to arrive. Soon sirens could be heard in the distance coming closer.