^ English keyboards don't tend to have umlauts unfortunately.
This is interesting news though, especially as Grona Lund already have a haunted walkthrough attraction by the stage / ice cream shop (called Spokhuset). I wonder if that one will be staying, or if this is just a re-theme of that. It would be weird to have 2 year-round actor-led scare attractions, and I can't imagine where they're going to find the space to build something new!