Dear Sarnaut,
The people of Zem are the
oldest race on the planet, having managed to rise from death and sustain themselves by replacing their mummified flesh with mechanical body parts. You may be all too familiar with the legend of Tep - yet without Tep's mad influence, the Arisen may not have risen at all. Regardless of an Arisen's intentions, their influence can greatly impact everyone around them.
More details.