The Letheni were the second race to be created on Aellorah, emerging in central Arak near Mt. Ardreth where Lys' Wellspring resides. This heralded the beginning of the Age of Creation, where after Aellor's success in shepherding the Dwarves, the other Seven Sisters began to experiment with life of their own. Curiously, Lys, the goddess of life, was second to create life on Aellorah.

The Letheni are extremely long-lived, and serve to be Aellorah’s living memory. Unlike Humans, Letheni do not strive to make rapid change. Whereas the Humans have such a relatively short time to live, and must rush to accomplish their goals, the Letheni have several millennia, and are in no hurry. They take their time with tasks and are very meticulous. This clash in intensity of ambition has often put the Letheni at odds with the Humans.

Letheni enjoy the natural world, and though modern civilization has brought with it the advent of large cities such as Mythwell, which are sprawling metropolises filled with stone and wood and smoke – wherever Letheni can be found, you can be sure nature will be incorporated into the city somehow. They feel stifled when they cannot see all the beauty the natural world has to offer, and they are very fond of flowers. This respect for the natural world makes them great friends to the Lynoxi.

The Letheni inherited her divine domains of Life and Temperance, and one other depending on their subrace.