The New Scooby and Scrappy-Doo Show The New Scooby-Doo Mysteries Episode 4 The Hand of Horror ( Air Date 1984-09-15 ) Genre Animation, Mystery, Family, Comedy, Kids category. Overview "When Shaggy takes a wrong turn, the gang end up at a mansion. Ratfield leaves the house after being fired and tells the gang to leave, too. They head in and find two bickering twins. Then, a mysterious, disembodied hand pesters the gang.".