I really enjoyed reading this. It struck me very much more as a description, though, a laying out of a scenario, rather than a story with plot and characters. That's certainly not a bad thing; it's very thought-provoking; it read to me like a psychological case-study - or not so much a case-study as a scenario/method/experiment for exploring the human mind and the differences between people - what drives us mad, how do we handle purposelessness and absolute ignorance... As others have said I think it would be a wonderful story if it was fleshed out a little more, and of course it's your story so I don't want to be dictatorial, but I don't think it would work if the inhabitant comes to discover anything about whoever it is holding him captive; I would have the focus of it more internal, concerned with the current inhabitant's state of mind and the stories of those gone before - because (personally speaking - maybe I'm wrong for others?) the real interest lies in the psychology of it, rather than the imaginings of who has brought him here, and perhaps his struggle to escape. I think the reasonably calm, sage tone of the narrator would contrast well with the potential insanity of some of the booklet-writers. Anyway, nice one, loved reading it : )