This is an add-on Secret Cavern which you should be able to add to any room you already own. There is also 8 avatar standing nodes conveniently placed within the model. Please Note: although the model has been equipped with these furniture nodes, the 3D engine doesn't know how to load items onto the unit if it loads after the other items - This is beyond my control and I guess we'll have to wait for the programmers to find a solution