The battle was joined already, she had waited distracted too long. Even now, she felt the shattering of peace upon the nameless world, as it split sent rippling earthquakes over it’s surface. Mania could wait, she must act now. In her hands, she reached out and took some of the light of Maia. She gathered it up into a glowing sphere, imparted it with knowledge and power, and flung it out into space.
The knowledge in it would flow out to the worlds, and settled in the minds of intelligent mortals. By far, it mostly settled on the minds in the nameless worlds, but a few on each world with intelligent populations received it as well. It was knowledge of a ritual, one Luna had just devised. If mortals were in need of refuge or peace, they could inscribe the ground with the symbol of a crystalline moon and star, and a way to Aether would open. These portals were made possible by the power Luna colleted in the starlight, which merged into the void.
But she was not yet done. She needed to make sure that this ritual could not be misused to bring war to Aether. She flew to the mountains, and begin hollowing one of the great crystals, creating a vast hall within it. Columns of glittering sapphire reached up from a diamond floor to support the great domed ceiling far above. These columns were arranged in a circle around a vast floor. It was within these circles that those who used her ritual would appear. She imbued this hall with judgment, insight, and will. If those who arrived truly sought refuge, or were peaceful, they would be allowed to stay. But if they had willfully used the ritual to bring harm to Aether, they would be sent back.
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Meanwhile, the light of Luna’s working could be seen over Aether. The beings Garthor asked merely directed him toward this starlight.
Act 1: Luna creates the ritual ‘Mark of Luna. Anyone inscribing the symbol of a crystalline moon and star on the ground can make a portal to Aether.
Act 2: Luna creates the crystal hall, where any arriving via the ‘Mark of Luna’ would arrive. If they used the Mark of Luna to come to Aether to bring harm to it, they would be sent back by the power in the hall.