From publisher blurb:
The Echoes of the Final Heartbeat is a collection of texts containing the research of arcane scholar Gretha Heldesmarch (N middle aged romni Wizard [necromancer] 9). The widow of a minor noble from Sileasia, who was also a practitioner in the field of necromancy, Gretha fled to the Colonies after her husband was killed by vindari inquisitors for participating in heresy.
Vathak Grimoires: Echoes of the Final Heartbeat is a supplement for Shadows over Vathak, especially those exploring the area of the Colonies. This product is a perfect supplement for any Pathfinder Roleplaying Game, especially horror. The Vathak Grimoires product line presents a single spellbook with history, spells, rituals, and other new and optional rules.