Indeed, in a way, it was unearthly.

My senses were smitten, it pulled at my heart-strings, and yet its unutterable strangeness seemed to awake memories within me, though of what I could not tell.

A wild fancy came to me that I must have known this heavenly creature in some past life.
By now Bastin had joined us, and, attracted by my exclamation and by the attitude of Bickley, who was staring down at the coffin with a fixed look upon his face, not unlike that of a pointer when he scents game, he began to contemplate the wonder within it in his slow way.
"Well, I never!" he said.

"Do you think the Glittering Lady in there is human ?" "The Glittering Lady is dead, but I suppose that she was human in her life," I answered in an awed whisper.
"Of course she is dead, otherwise she would not be in that glass coffin.
I think I should like to read the Burial Service over her, which I daresay was never done when she was put in there." "How do you know she is dead ?" asked Bickley in a sharp voice and speaking for the first time.

"I have seen hundreds of corpses, and mummies too, but never any that looked like these." I stared at him.