How to complete Blasphemy in The Blood of Dawnwalker

Summary

The Blasphemy quest is one of the most impactful in Blood of Dawnwalker 's prologue, since it impacts the Blood Mass at the end of the day. When you find Gremla, bemoaning the theft of her tapestry, she explains that she took on that task of weaving a vampiric banner for the Knyaz, and that Brencis won't be pleased if she can't get it back. It's easy enough…