Spookslot is a animatronic show in Alternative Realm at Efteling. While it's not a "must do," it is also recommended.
A ten-minute show that takes place in a huge indoor mock graveyard, and set to Saint-Saens's chilling Danse Macabre. The actually show, however, is not nearly so dramatic as the soundtrack. It starts well, with a hanging body bouncing up and down, attatched to a church bell rope. After this however, the show comprises mainly of less impressive animatronic tricks - such as opening and closing coffins, and shaking trees - being repeated over and over. The biggest mistake is the lack of a climax of any sort, which should a priority for any show of this kind. Skip it, unless the queue is small.EDIT: This is the first attraction of the Efteling. It's 25 years old, and still very good. Most people walk by, becouse very few knows this is something.