Bright Moon is one of the main seven Kingdoms of Etheria.
This realm was ruled over by the former Queen Angella from the series beginning. Later, as of Season Four, is now ruled by Queen Glimmer. Its Runestone is the Moonstone. It is been inhabited continually until Horde Prime's invasion caused the citizens to flee from their homeland.
As this domain was chosen as main headquarters for the The Rebellion and the The Princess Alliance, Bright Moon is the base for all Princesses. It is a beautiful, tranquil, and harmonious place, with its gigantic levitating Runestone, The Moonstone, decorating the front and gigantic waterfall.
The only means that can properly protect Bright Moon from the Horde or any other possible invasion is the magical barrier which comes directly from The Moonstone and the Whispering Woods, thus the goal of the Horde is to take over the woods. Thus, this makes this domain the largest kingdom on all Etheria.
Underneath the realm of Bright Moon, there are underground caverns leading to the Chamber of Queens witch is guarded by an elemental guardian. The then princess Glimmer stored up weapons and armor in the Bright Moon Armory during the events of Season One. It is unknown where exactly it is.
- Bright Moon is the 2nd kingdom to be seen in the series, after the Fright Zone and one of the main locations of the series.