Rita Mae Brown collaborates with feline co-author Sneaky Pie Brown in a new mystery starring Mary Minor “Harry” Haristeen, the curious cat detectives Mrs. Murphy and Pewter, and Tee Tucker, the valiant crime-solving corgi. Halloween arrives early this year to rural central Virginia, when a twisted killer will stop at nothing to protect a multimillion-dollar scheme.   THE LITTER OF THE LAW   Autumn has descended and crops are being harvested all over Crozet, Virginia, ideal conditions for a scenic drive for Harry and husband Fair. Bucolic views are all well and good, but Harry’s nose for trouble leads her straight to a cornfield’s macabre scarecrow—an all too real murder victim that frightens all but the noisy crows.