The Keep on the Borderlands is set in Dyriamarch, a region of Melderyn claimed, but not effectively controlled by that kingdom. There is also a letter meant to be handed to the players before the adventure.
Firith Townhouse, in the Haldana district of Tashal is the residence of Sir Prehil Firith, recently appointed as an alderman of the city, the so-called "Speaker for the Nobility".