Necropolis Artwork by Kartabon

In keeping with a new publisher and developer for this, the latest incarnation of the Heroes series, a completely new storyline has been developed, and with it, a new history.

Necropolis: A Chronological History (From the Official Site)

The Origins

62 YSD: The Schism of the Seven
Schism between the disciples of Sar-Elam, who canít agree on the best way to follow the road laid down by the Seventh Dragon and, hopefully someday surpass him. Sar-Antor founds the Blind Brothers, a congregation of healers, seers and embalmers dedicated to the worship of Asha. Sar-Badon founds the Dragon Knights, a martial order disciplined in both body and mind.
The other disciples, led by Sar-Shazzar, the most gifted of them all, lead an exodus of wizards and like-minded humans to found the Seven Cities (the first kingdom of Magic) in the southern deserts.

74 YSD: Mysterious death of Sar-Shazzar
Sar-Shazzar dies in his sleep. When attendants attempt to move his body to the Necropolis for preparation and burial, it crumbles to ashes.

461 YSD: Discovery of Necromancy
Belketh, a disciple of Sar-Shazzar, discovers the path of Necromancy. Necromantic experimentations begin in the Seven Cities.

610-660 YSD: Rise of the Necromancers
The Necromancer presence grows until they are a powerful political force in the Seven Cities.

The Modern Ages

751-770 YSD: Purge of the Necromancers - Civil war in the Seven Cities
Jealous of the power acquired by the Necromancers, the Wizards of the Seven Cities initiate a large-scale persecution, ranging from the seizing of their properties, to banishment, to the spectacle of public executions
A long and gruesome civil war ensues. The ancient cities are destroyed and much of the land is rendered uninhabitable.

771 YSD: Foundation of the Silver League
Survivors of the Seven Cities establish the Silver League (the second kingdom of Magic) in the lands to the south. Necromancers flee east to the haunted valley of Heresh.

813-822 YSD: War of the Broken Staff
The Necromancers attempt to crush the newborn Silver League but the Wizards gain the upper hand and invade Heresh. The Necromancers are utterly defeated and their kingdom shattered.

The Characters

Sar-Shazzar
Leads an exodus of wizards and aspiring wizards to found the Seven Cities, the first Kingdom of Magic.

Belketh
A disciple of Sar-Shazzar, discovers the art of Necromancy. He launches Necromantic experiments in the Seven Cities.

The Full Moon

Thanks to ThE_HyDrA for creating and looking after the Heroes 5 section of Age of Heroes!