The trip to Earth began in the middle of the night and ended on the next day, exactly at the same time. So, their surroundings were almost pitch black, save for the light from the lanterns hung at equidistant places.
The operation theatre had already been brightly lit thanks to all the lanterns the servant Sii had lit. it wasn't anything spectacular. There was a large granite slab in the centre, rectangular in shape, big enough for even the tallest in their Clan to lay with enough space above his head and below his feet.
There was a table set aside, and placed atop it was an array of tools, mostly Magic Artifacts that she used on a daily basis. The operation theatre had a set of tools necessary to do a variety of procedures. So, Mu'Tua didn't need to bring anything of her own.