Start by thinking of a story that you want your haunted house to tell. Is it the Bates Motel? A witch's house? "Maybe it's a haunted butchers shop," suggests Kroneck. "That sounds pretty terrifying to me."
Once you have a story in mind, plot a path your kids will walk through the house, so the story has a beginning and an end and they aren't just wandering aimlessly around the space.
After you've set them on a path through the story, give them room to get lost in it. "The best haunted houses only allow a few people in at a time and keep people at a good distance," says Dahl.