Luna blurred out of sight for a second, reappearing near the players.
Planting her feet on the ground, she focused on the small orbs of light floating above her antlers. As she did, they slowly started spinning in place, before rising into the air, dancing in a perfect circle.
They closed in on each other, still spinning smoothly, before accelerating.
Then, suddenly, they dispersed, slamming into the ground in a perfect circle around the party and her, as a barrier of energy formed between each orb, closing in like a dome above the players' heads.
The transparent barrier was invisible to those who couldn't see or feel mana, which was very few people in this group. But for the others who could, it was like looking at a glass bubble, with speckles of light dancing in the glass.
It was beautiful to watch, but terrifying to sense.