Ye Olde Nessie Shack was a tourist shop in Loch Ness, Scotland, and was owned by Charlie Wallace, and Ekaterina. There is a secret door in the floor that leads to the Loch Ness Monster Submersible, used to keep track of the Clue Phosphorus that is hidden at the bottom of the lake. The Nessie Shack was built and sells gifts all about Nessie, so that Cahills and tourists alike will think that the lake is dangerous or so they don't become suspicious of Nessie.