, leader of the Dead Moon Circus, is named after the ancient goddess Nehalennia. Nehelenia is like the dark mirror image of Queen Serenity; the self-styled Queen of the dark center of the Moon that existed since the Silver Millennium. She made herself known at the celebration of Princess Serenity's birth. Swirling with dark energy, she confronted the Queen who used the Moon Wand to seal Nehelenia inside a dark mirror forever. In retaliation, Nehelenia cast a curse that the Moon Kingdom would fall and the princess would never inherit the throne. The Sailor Guardians thought this might have been what ultimately brought about the end of the Silver Millennium. Thousands of years later, a solar eclipse allowed her to breach the seal and make her way to Earth, where she found Sailor Chibi Moon's four future guardians, the Sailor Quartet, sleeping in the forest. She awakened them prematurely and brainwashed them into becoming her minions, the Amazoness Quartet, to aid her in her goals. She set out to take over the planet from within, by way of corrupting the land of Elysion with her dark powers, capturing its High Priest, Helios, and then by sending the Amazoness Quartet to defeat the Sailor Guardians and retrieve the Silver Crystal from Sailor Moon. Once the Sailor Guardians managed to defeat all of the minions, they eventually found out the Golden Crystal, an item that could save Elysion and the planet, was inside Tuxedo Mask's body, and went to confront Nehelenia in Elysion, where she attempted to take the Silver Crystal one last time. But the power of it combined with Tuxedo Mask's newly awakened Golden Crystal prevented this yet again. When defeated by Eternal Sailor Moon using the joined powers of all the Sailor Team, Nehelenia shrivelled into a wizened old woman, and, after being sealed inside her mirror once more, was vanished completely. It is revealed towards the end of the series that Nehelenia is just an incarnation of Chaos, the ultimate antagonist of the series.