My campaign is based in Sanctuary, Thieves World. Until this point pretty much all adventuring has been in, under or around a single city. This is about to change and my campaign is going to become a bit more epic. The factions and places used in my campaign are from the Thieves World Gazetteer and are grounded in a number of off-the-shelf modules but this backstory is my own work.
This backstory will introduce the main villain, to my players... a defeated lich and a cabal of 'destroyed' vampire lords. The players in my campaign have just uncovered a stronghold to the Bloody Hand Cult. They have no idea of this backstory yet, as I have just created it but my plan is to 'drip feed' the epic plot to them through specific NPC's they encounter, maps they find and rumours/clues.
Glossary:
Order of the Blue Star - a guild of good magicians
Bloody Hand - a guild of fanatical cultists, chaos and human sacrifice are their hallmarks
Dyareela - blood thirsty goddess worshiped by the Bloody Hand
Firaqa - a city of magic famous for its colleges of magic
Centuries ago Murmaranus, a powerful lich created a cabal of shadowmage vampire lords. There were four vampire lords who made up the cabal. They had many names: The Soul Stealers, The Sons of Dyareela and The Assembly of Chaos. The cabal were destroyed by the Blue Star Magicians at great cost to their order. Murmarandus was banished and imprisoned in an astral plane 'The Plane of the Damned'. As a safeguard the remaining magicians of the Blue Star Order used their magic to trap the 'soul' of each vampire within a stone. These were the Soul Stones. One Soul Stone was created for each vampire lord. These artifacts were scattered and hidden throughout the Known World. The secret location of the Soul Stones was closely guarded. Even though the vampire lords were destroyed, evil of this level of power is never totally eradicated. The Bloody Hand have been searching for the Soul Stones for centuries... gathering power and followers... Secret lore about the Soul Stones was found in catacombs in the Dark Library below Firaqa, the city of magic. Using dark rituals the cult plan to resurrect the Soul Stealers. Each stone is unique and allows a specific vampire lord to be resurrected. The dark rituals must be fueled by a suitable sacrifice, a righteous person such as a powerful high priestess, cleric, or blue star magician. The timing of the ritual is very specific. It must take place during a Blood Moon. These do not occur often, once every two years. There is however a rare event called a lunar tetrad where four lunar eclipses occur in a row, six months apart. The Blood Cult plan to resurrect all four Soulstealers using the lunar tetrad. Once the Assembly of Chaos have returned they will have enough combined power to free Murmarandus from his exile in the Plane of the Damned. When a Soul Stone is found the Bloody Hand Cult must build a new temple for the specific purpose of the Blood Moon Ritual, gathering followers and sacrifices. Some of these sacrifices are merely used to consecrate the temple foundations and others used to summon foul beasts to protect the temple, strengthening its defenses so that the Blood Ritual can be carried out uninterrupted.
Currently the party are hunting for a Blue Star Magician that has has vanished (most likely taken by the Bloody Hand). They have also uncovered a Cult of Dyareela stronghold in the hills out of the city and are planning to assault a new Bloody Hand temple that recently appeared in the city.
Once the backstory becomes known the party will be swept up in a quest by enemies of the Bloody Hand. Their goal will be to find the other Blood Hand strongholds/temples and destroy them before they can resurrect the Vampire Lords... the price of failure will be the return of the major villain... Murmarandus the undead Shadowmage!