"Threshold. The northernmost town in the Duchy?and your last stop before your adventures begin. Threshold, the gateway to mysterious castles, lost temples, deadly caves and caverns. You have heard the stories and legends now you wish to see for yourself."
This product provides a complete campaign adventure that will take beginning characters from 1st all the way to 3rd level and possibly beyond, drawn from the first nine modules of the B-series adventures."
How does B1-9 do this? Well the adventure elements " In Search of Adventure can be strung together in one of three new overarching plots using an adventure flow chart, depending on where the players head off from their starting point in the town of Threshold."
The key is the town of Threshold and the Vaults of Pandius website in very handy; "Vaults of Pandius has a nice collection of maps that folks have created with some nice additions that situate published adventure locations. (B1-9 Karameikos is a good one.)"
Karameikos itself is an excellent fantasy city and works quite well with Castles & Crusades. Will this work out into a solid on going mini campaign? Only time will tell?!