The same author of Croocked Tower is readying two very interesting new models. Based on Escher optical ilusions he created two sets of stairs. Check on: PaperCube http://www.mythoz.org/Joomla/index.php/En Look in the menu, on the left for "in progress". He was kind to send me the models, although without the instructions that he is still finishing. I'm not doing a beta-test, the model is tuned, just missing the instructions. So far I've been assembling the several set of stairs, but haven't joined them yet. I might even come up with a final form different form the authors vision. What we share together is the need to place some figures to enhance the diffrent plans of the stairs. I'm thinking of using three identical figures, each on a different plan or orientation. Kind of an endless enclosure that the character and his reflexes or not aware of. Something that makes me think about our times... A friend of mine, Francisco bexiga http.//fbminis.blogspot.com offered help with the figurines. He is much more at ease with sculpting and casting copies in resin. The images are not by a logical order. There are two very known drawings of escher, a photo of the assembled model by jul form papercube, as you can see a preview in his site and a sketch on how i'm thinking to stage the scene.