With a quick gesture she arose and approached the table, emptying upon its spread the contents of a chamois bag. Before the physician’s eyes sparkled a score of exquisite gems—diamonds, rubies, sapphires and emeralds of enormous value.

He gave them but a glance and looked into the girl’s eyes. They sparkled as brilliantly as the jewels, but were equally mystifying. What she read in his own eyes is uncertain, but a moment later she sank at his feet and clasped his knees in her rounded arms.

“For the cause of science,” she murmured, looking up into his face with a ravishing smile, “I will gladly promise the great physician ten gems, equally as flawless and pure, for every one now before him! It is a rare treasure, my Persian. All I ask in return is permission to attend the Khan until morning.”

His brow flushed, but he did not withdraw his gaze from her dark eyes.

“Ah, do not refuse me,” she pleaded, resting her head against him so that the fragrance of her hair saluted his nostrils like an enchanting perfume. “It is so little for you to do, when you may ask so much in return!” Her bosom heaved with emotion and pressed against his knee. “You shall have a palace of your own, my friend, here in Mekran, where you may woo Science at your will and command a thousand slaves to do your bidding. Are we not playing for a throne? And who shall have greater power than the man that enables the new khan to sit therein and rule a kingdom? I am the daughter of the vizier, my Persian, and hereafter no physician but you shall attend me.”

She nestled closer, with a little sigh of content that seemed to indicate the battle was won to their mutual satisfaction, and for a moment both maintained the pose, silent and motionless.

Suddenly the physician stood up, freeing himself from the girl’s embrace. With an abrupt motion he swept the glittering gems into the little bag and tossed it at the girl’s feet. Then, with folded arms, he stood looking down at where she still crouched by the empty chair, her lovely features convulsed with a passion terrible to witness.

But the mood quickly passed. Her face cleared. She raised her hand and rearranged the disordered masses of her hair, laughing the while in low tones and lifting her eyes unabashed to the man who had repulsed her.

The Persian shuddered.

Slowly rising to her feet she made him a mocking bow and said, jestingly: