A vast chamber
"Well, all right," said Ella. "...your eyes should be clearing up now."
Indeed, they were. She was in a vast chamber that appeared to be something like the inside of a great, probably European, historical building-- great stone pillars and arches, marble floors, rich wall hangings. She stood in what appeared to be some kind of mystic circle that was inlaid in the ground in some kind of precious metal; nearby, a crystal the size of a human head glowed in shimmering colors, on a pedestal and surrounded by a similar crystal.
There were several other people present, standing outside the circle-- and they were obviously creatures of fantasy. One was clearly an elf, a young man, perhaps, wearing glasses, a text of some kind in his hand. He eyed Megumi uncertainly, but with, perhaps, a look of hope. One was some kind of... beast-girl? Perhaps a wolf...? But her fur was more yellowish, with spots. She wore clothes that had various painted designs and strange carved bones hanging from it; her feet were bare, ending in clawed paws. She was confused by Megumi, clearly, and looked her over cautiously and repeatedly. One was short and slender, with grey skin with odd piebald patches of black. She had short, wiry black hair shaved at the sides of her skull, fangs, and extremely large pointed ears, and appeared to be wearing some kind of thick coveralls with tools hanging from loops; the look she was giving Megumi was highly skeptical. Perhaps she was expecting someone taller. Hovering near her in the air was a tiny figure, no more than a foot tall, glowing with light, hovering on wings like a butterfly, but too small to see clearly.
And Ella, who had crossed over into the circle to offer Megumi a hand up, was very close. She wore jewels-- necklaces, a diadem, bracelets-- all of the same green stone, and was wrapped in fine, patterned silks. She looked at Megumi with something akin to adoration, and she...
...had slit-pupiled eyes, and light scales, more visible on her arms, and on her tail. Her long, strong tail that she had in place of legs. No mistaking the lamia at all.