From Vanguard Wiki
The
Undead rose from the sea to the south or the east, and slowly overwhelmed the south of
Thestra, which is now known as the
Fallen Lands.
Driving the Vulmane from their forests, and overwhelming such outposts as Southwatch, the Undead laid siege to the Thestran Human city of Targonor (now known as Old Targonor).
After their victory over the defenders of Targonor, the Undead push seems to have halted. But now, more than ten years later, they stir again...