Are your kids horror heads? Do they love a good ghost story that makes their spine tingle? Starting today through May 31 fright fans can enter the ‘R.L. Stine’s The Haunting Hour Screams Come True Sweepstakes’ for a chance for kids ages 8 and up to win a walk-on role in an upcoming episode of the popular “R.L. Stine’s The Haunting Hour: The Series” and a trip for two (one child and one guardian) to Vancouver, British Columbia. Beginning May 13, kids and their parents can go to HubWorld.com to enter.