Pyriphlegethon (2020)

From publisher blurb:

An Easter Tremere adventure

This book contains a one shot story or longer campaign centered around 1920s oppressive regime and unique situation of Bordeaux' Tremere Chantry. The clan has failed to keep up with societal change, unable to profit from the Roaring Twenties, the Regent is stuck in his authoritarian anger and desire for absolute control, everyone is tense and stressed, and there's a new frail alliance with the recent change of Prince.

This is a perfect situation for a particular Tremere's desire for vengeance, and they will need the PCs involvement for this. The ritual must be held on Easter, at the beginning of Spring of 192X, which is the beginning of a torpored life for Kindred as days get longer and longer and Kindred have less and less agency.

Will the Tremere fledglings find out the truth, survive, and deal with everyone's sensitivities, or will they miserably fail and become the instrument of their own end?

This can create an alternate timeline for Bordeaux by Night, as that fateful Spring of 192X was a turning point.