Yuki moves quickly. She trusts Mayzie because Eclair trusts Mayzie, and she particularly trusts Mayzie's understanding of the Chrysanthemum. So she reaches into her pocket and slips her mask over her face and has just finished pulling it tight in the back when the lights go out.

For that instant, there's something enchanting about it. Yuki feels like she's in a mystery play or at least some kind of dinner theater experience. One almost expects a spotlight to appear near the door of the room and a masked phantom to stride forward, flinging a cape over her shoulder with the sort of confidence of a Kpop video. 

And then, then the room is alight with pearly white light, shining forth from hundreds of motes and shards and strange little shapes like a field of glass sculptures each lit from within. 

Yuki lets out a delighted gasp, and her hands creep onto the table so that she can lift herself up on tippy toes and lean forward to see over the heads of everyone present and catch every last bit of this unique piece of art with wide delighted eyes from behind her maid's mask. 

She will be looking around the room taking it all in for whatever happens next.