Yeah, I've done it before. The campaign played out like D&D meets the X-files. It became impossible for me to actually reconcile all the loose ends of plots and clues so I just wound up ignoring a lot of them or twisting their meaning unforgivably, not unlike, "What I told you is true - from a certain point of view," or some CSM-like stuff that just says, "No, that was just a flat-out lie. THIS is the truth... and there's your next clue."Has anyone ever run an adventure with a Plot like the National Treasure movie? Where one clue leads to another to another etc?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.