I'm currently creating an adventure set in a massive mansion that is meant to be entirely within said mansion. There's a bit of a ball going on but the main events will kick off once most of the guests have left and those who are staying the night get to go on a tour. There's a big occult craze in this mansion, a number of conspiratorial secrets, and an attempt to prepare for a bit show off event seals the mansion off and tears a small rift that allows a number of, erm, gate crashers. The trick is that I don't know what to populate the mansion with or how to space out the clues. Does anyone have any advice or any links to articles or threads on this very subject?
Also, if someone could link that old Clues thread where we brainstormed numerous clues that would be great as my search terms are currently off and I can't find that gem of a thread.