Soylent Green mentioned the possibility of the psionic gadget in Through the Looking Glass being N'Cephalos tech. The N'Cephalos might be providing the super tech smuggled in Gangbusters!
I've run games where the fire character from The Mastermind Affair was the half-sister of the fire character from Sins of the Past, and the probability character was in fact the same person as the probability character from Sins of the Past (in a wig, and only because Grandpa asked her to
The fact that Danger In Dunsmouth, and (from Fainting Goat) The Other Side both have Lovecraftian overtones makes me think you could connect them, and maybe a third (GM-scripted adventure) with Dirge.
I think you could make a good case that Aquazombies of the
Kriegsmarine, Vampires of Red Square, and Drusilla White from Villainomicon are all connected somehow. (Heck, throw in Museum Mayhem too....and it would be possible to throw use that museum as the one containing a special collection of stuff from the Golden Agents after their place got trashed.)
What kinds of links do you imagine between adventures so that they form a series?
John McMullen (Searching for a