From the Records of the Broken Lands
Years ago, the Sage Uthex Kathiasas was among the greatest researchers and theorists of the time. His research into what he called "a new source of power" was soon twisted and perverted into perilous forms by the subtle influence of the forces of the Undead.
Uthex Kathiasas had used his powerful influence to gain control over a small and remote natural gate leading to another plane of existence. It was in that place that the Sage conducted secret experiments designed to provide his new power with physical form that could serve the needs of the Sages in their struggle against the Undead.
Few records of the battle against Uthex Kathiasas and his minions have survived the ages, but it is generally accepted that the Sages easily gained access to his secret workshop. Uthex Kathiasas was destroyed during the ensuing battle, and while the Sages were not able to completely destroy his experiments, they removed what records and equipment that they could, and sealed the gate leading to that location with Runes of Warding.
A small monastery was established at the sight of the gate in order to provide additional protection and to maintain a watch on the gate. Records of the exact location of the monastery and the gate have been lost or destroyed in ages past.
Only place I can recall any information on the Broken Lands.
Kardgar