“It is in this way, Excellency. The suspected person and one or two others known to be untainted are taken into a dark room. Some spirit mixed with salt is poured in a dish, a small piece of tow is dropped in to act as a wick, and then a light is applied. As your Excellency knows, the light produced is of a bluish green, and by this illumination the faces of all healthy persons look deadly white, but the face of the leper appears red as fire, although he have no other sign of leprosy visible to the most careful observer.”
“Come, come, we will test the efficacy of this foolish old superstition,” cried the magistrate.
The materials having been brought, the four retired to a small unlighted apartment, and To Tao ignited the spirit. Eagerly Yeh scanned the faces round him, now rendered ghastly by the green light, when suddenly he noticed a look of horror spread over the faces of the two women. Su Sing burst into tears, and her attendant threw herself on her face on the floor. To Tao alone remained unmoved.
“Speak! speak!” screamed the magistrate. “What means this foolishness?”
With bowed head To Tao meekly responded: “It is nothing, Excellency, the girls are silly and frightened. Believe me, it is nothing. The girls must most certainly be low-born, or they would know better how to behave in your august presence.”
Yeh, however, was far from satisfied. He summoned the attendants, ordered lights to be brought, dismissed the girls, and ordered To Tao to remain. The two being left alone, with nervous haste Yeh poured out a tumbler of champagne and demanded an instant explanation of the hunchback.
“Speak!” he said, “and the truth, moreover, or it may be my unpleasant duty to interrogate you under torture.”
To Tao begged his master to excuse him, repeating that the whole affair was due to the stupidity of the girls. Yeh flew into a violent temper, and said that if the hunchback did not instantly explain the servants would be called in and To Tao delivered to the inquisitor. Whereupon, with downcast eyes, the trembling servant said—
“Excellency, your face by the green light was——”
“Was what?” thundered Yeh.