"A remarkable case!" he repeated slowly. "To be frank about it, I can't find the slightest clue as to what's wrong. She seems in a perfect state of health. Organically I can detect no possible cause for this coma. Yet she doesn't respond to any resuscitatory measures."

"But there must be something—"

The specialist shot Mark a disapproving glance. Without a word he opened his bag, taking from it a smaller case of instruments. He selected a long, slender dissecting needle. Plunged its point into a bottle of disinfectant.

"Watch me!" he commanded.

Turning to the bed, he plunged the needle an eighth of an inch into the unconscious girl's breast!

Mark's eyes went wide with horror. He started forward. Found himself halted by Professor Duchard's hand.

"You asked a question, Mark!" the white-haired scientist rapped. "The doctor merely is giving you his answer. Look at her!"

Elaine had not stirred! If anything, she lay even more still than before, not a muscle so much as quivering. Her eyes were closed, her face calm, her golden hair halo-like about her head.

The neurologist bared her thigh. Again plunged in the needle.

She did not move.