Astrid Saj is a wealthy merchant who hopes to elevate her family and become one of the 49 noble houses ruling Mulmaster. In the first adventure, Mistress Saj is trying to impress the citizens of Mulmaster — noble and commoner alike — by hosting a party that lasts a full ten-day. She knows that Mulmasterites take their festivities seriously, as these celebrations are an escape from their harsh reality.
Astrid Saj is a generous employer and provides employees with food, lodging, and some coin for their efforts. She also gives them the opportunity to mingle even while working her party.
Mistress Saj is mentioned in DDEX2-1 City of Danger, but is never encountered in-game.