Original designer notes:
...this model is again a unique concept in furniture design. This is an add-on Secret Cavern which you should be able to add to any room you already own. Be the envy of all your friends when you show them your wonderful room you just bought, but then surprise them when you take them down to your secret lair when all the fun starts.
In this model, I've added additional floor nodes so you can add extra furniture - 7 in total, 7 wall nodes to hang your favorite pictures and 2 ceiling nodes just in case you feel like adding some mood lighting. There are 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.