"Good heavens!" And his arms went around her so tightly that she begged for quarter.

"How strong you are!"

The splendor of the rooms, the dazzling array of jewels, the kaleidoscopic colors, the perfume of the banked flowers and the music all combined to put Florence into a pleasurable kind of trance. And it was only when the first waltz began that she became herself and surrendered to the arms of the man she loved.

And they were waltzing over a volcano. She knew and he knew it. From what direction would the blow come? Well, they were prepared for all manner of tricks.

In an alcove off the ballroom sat Braine and Olga, both dressed exactly like Norton and Florence. Another man and woman entered presently, and Braine spoke to them for a moment, as if giving instructions, which was indeed the case.

The band crashed into another dance, and the masqueraders began swirling hither and thither and yon. A gay cavalier suddenly stopped in front of Florence.

"Enchantress, may I have the pleasure of this dance?"

Jim touched Florence's hand. But she turned laughingly toward the stranger. What difference did it make? The man would never know who she was nor would she know him. It was a lark, that was all; and despite Jim's warning touch she was up and away like the mischievous sprite that she was. Jim remained in his chair, twisting his fingers and wondering whether to laugh or grow angry. After all, he could not blame her. To him an affair like this was an ancient story; to her it was the door of fairyland swung open. Let her enjoy herself.

Florence was having a splendid time. Her partner was asking her all sorts of questions and she was replying in kind, when out of the crowd came Norton (as she supposed), who touched her arm. The cavalier stopped, bowed and made off.

Norton whispered: "I have made an important discovery. We must be off at once. Come with me."