He had well schooled his turbulent temper to calmness. After Caius Nepos' departure and a final outburst of unbridled violence, he had plunged into a cold bath and given himself over for half an hour to the ministrations of his slaves. Then, cool and refreshed—at any rate outwardly—he had dressed himself in simple robes, and passing right through the halls of the Palace of Tiberius which adjoined his own, he had reached the precincts of Dea Flavia's house, which in its turn abutted on that built by Germanicus.

At any other time but the present one—when his frenzied mind was wholly given over to thoughts of the terrible treachery against his own person—he would have been conscious of Dea Flavia's exquisite beauty, as she stood before him, humble with the proud humility of one who has everything to give and nothing to receive; chaste with that pure ignorance which refuses to know what it cannot condone, and withal a perfect woman, imbued with a fascination which no man had ever been able to resist, for it was the fascination of youthful loveliness combined with the stately aloofness of conscious power.

At any other time but this, the unscrupulous voluptuary would have gazed on his beautiful kinswoman with eyes that would have shamed her with their undisguised admiration, and mayhap his look and actions would have placed a severe test on her loyalty and on her respect for him.

But to-day Caligula only saw in her the tool whom conspirators meant to use for their treacherous ends, her loveliness paled in his eyes before the awful suspicion which he had of her guilt, and whilst she stood quietly awaiting his pleasure, he marvelled how much she knew of the traitors' plans and whether her white fingers would effectually thrust the dagger into an assassin's hand.

She had dismissed her slaves at his bidding—all unconscious as she was of any danger that might threaten her through him. He waited for a while in silence, then he said abruptly:

"Dea Flavia, what is thine age?"

She looked up at him, smiling and puzzled.

"Some twenty years, great Cæsar," she replied, "but of a truth I had not kept count."

"Twenty years?" he retorted, "then 'tis high time that I chose a husband for thee."

This time she looked up at him boldly, and although in her glance there was all the respect due to the immortal Cæsar, yet was there no show of humility in her attitude as she threw back the heavy masses of her hair and drew up her slender figure to its full stately height.