The Dragon's Coven: A Jaalorelian Origin Story

This adventure is a one-shot adventure for a party of 4 level 15 characters that predates the "The Crow, the Dove, and the Shadows That Lie Between" by a few hundred years.
A cult of acolytes has amassed in Stredor. They've build a campus of temples and have been plotting for months. Native tribes in the area say this cult worships the Dragon Queen Tiamat, and aim to bring her wrath into Jaalorel. Once word of this reaches the House of Governance in Stredor, politicians send a notable adventuring group to quell the disquiet in the region and preven the rise of Tiamat in exchange for fame and coin.