Yondalla is one of the seven children of the creator. She is the most youthful and childish of the seven, and is often depicted as a child. She is the creator of the Faeries, the first of the seven races to inhabit the world. Yondalla instilled in her creations the same impishness and love of fun that she exemplifies. She did not have the same high expectations for her creations that the other gods did for theirs. She merely wanted the world to be filled with fun and childish games.
While her Faeries are often beautiful and powerful, the other six gods believe that Yondalla gave them too much magic. Many Faeries, such as Lella of the Morning, have become so powerful that they appear divine. In fact, many of the Faeries, those with too much cunning and not enough kindness, turned to darker tricks and darker magic. Crom Cruach, the dark Faerie, became the first truly evil being in the world.
Ashamed at her failures, Yondalla never created any other gods to help her. She did go on to create a few more races, notably Gnomes and Hobbits. Yondalla very much wanted to impress her brothers and sisters with her creations, so she modeled her new children on Dwarves and Humans respectively. While her creations are close in concept, hers still retain their mother’s cleverness and childishness.