What you are looking at here is a still unfinished and flattened PSP image containing 8 layers from the top most towers to dungeon level one. This will likely class as a mega dungeon suitable for Level 0 thru 8; with the initial points of contact being entry level and the deeper you go, the more troublesome it becomes. With the Dream House out of the way, I have to turn once again to low level adventures; primarily because all the big characters in the campaign will be suffering from the time dilation of the The City of Brass. Therefore, we will turn our gaze back to humble beginnings...but not humble settings. I have some strong ideas for the Silver Castle that, hopefully, should lure players back to the same location without it becoming tired. My confidence in this regard has been bolstered somewhat by the fact that my players have already spent TEN sessions in the City of Brass and, rather than hastening to depart, are drilling down further. I suspect they will not leave prior to 14 sessions. Anyway, this new thing I'm tackling is meant to be more friendly to comings and goings...potentially luring the new batch of novice PCs intermittently over the course of their tumultuous and perilous young levels...back time and again to dare some new threshold, discover some new secret, and piece together another part of the puzzle.
The scope of this is far bigger than anything I've done beyond the Night Wolf Inn. Thankfully I have time because my players are still in the City of Brass.
Hope your Holidays are wonderful. Peace and happy gaming.