Since someones blog keeps mentioning Zombies, I have decided to generate a campaign idea around it.
Paris, France-1890 A.D.
Three months ago the gates of the city were shut to stop the Grey Death spreading to the rest of Europe. Observation towers were built outside to make sure none of the infected escaped. A week ago, a light appeared at the Eiffel Tower. The light signaled in Morse Code, "We have the cure. Extraction needed." Since then no signal has appeared. Your patron wants you to go and find who signaled and retrieve the cure. He will provide an airship that can dock at the Tower and will retrieve you when you signal.
So there you have it. Zombies, zeppelins, steampunk and the City of Lights.