Mystery Story Starters and Writing Prompts for Halloween and Horror Flash Fiction

"It was a dark and stormy night...' Remember Snoopy's famous one-line opener? It prefaced the Dog Wonder's ever-elusive great mystery story. Perhaps you know how Snoopy feels, perched atop his doghouse, typewriter silent. You've got the bones of a mystery story rattling in your brain like a skeleton in a too-crowded closet.  But where to start. How about here, with these Mystery Story Starters and Writing Prompts for Halloween Flash Fiction