Castle Mistamere: Further Adventures

The "Group Adventure" involving the ruins of Castle Mistamere represents a great start to a BECMI campaign, but where to go from there?

Map from the D&D Expert Set (1983) rulebook by Frank Mentzer

Threshold:

The D&D Expert Set (1983) rulebook contains several ideas for adventures in and around the town of Threshold, some for 1-3 characters, and others for parties of all levels.

I would strongly suggest running "The Old Mill", "The Attic", and/or "Riverside Tragedy" for 1-3 characters before "Castle Mistamere" (see Campaign Journal).

This gives beginning DMs a chance to run sessions for 1-3 players, and provides characters with an opportunity to gain experience, before taking on Bargle.

After the "Group Adventure", it's a good idea for the party to have a few more adventures in and around Threshold, before leaving to seek wider fame and fortune.*

*two other possibilities include "The Haunted Helm" and/or "The Questing Barbarian" for character levels 1-4, in AC10 "Bestiary of Dragons and Giants" (1987)

Kelvin:

The PCs will eventually make the trip downriver to Kelvin, which is comparable in size to Threshold, and smaller than Luln, according to the legend in the D&D Expert Set (1983) rulebook.

From there, the party can either decide to continue following the river to Specularum, head north across the mountains to Selenica, or explore the surrounding wilderness.

(Module B2 "The Keep on the Borderlands" is indicated on the map, although I prefer a location further south, on the other major tributary).

Specularum:

For parties continuing to Specularum, this represents an opportunity to run module B6 "The Veiled Society" or obtain passage to "The Isle of Dread".

Selenica:

For parties choosing to travel north to Selenica, they might be hired as caravan guards, and head east into the Alasiyan desert and module B4 "The Lost City".

Should they decide to travel west, there's an opportunity to run "The Sword of Justice" from Dragon #92 on the way to Darokin City.