She broke away, but with a glance that drew him after. "It is late now and we must set forward," she said abruptly. "Come to me tomorrow early. I have much more to say to you."

The words seemed to be driven out on her quick breathing, and the blood came and went in her cheek like a hurried messenger. She caught up her riding-hat and turned to put it on before the Venice mirror.

Odo, stepping up behind her, looked over her shoulder to catch the reflection of her blush. Their eyes met for a laughing instant; then he drew back deadly pale, for in the depths of the dim mirror he had seen another face.

The Duchess cried out and glanced behind her. "Who was it? Did you see her?" she said trembling.

Odo mastered himself instantly.

"I saw nothing," he returned quietly. "What can your Highness mean?"

She covered her eyes with her hands. "A girl's face," she shuddered—"there in the mirror—behind mine—a pale face with a black travelling hood over it—"

He gathered up her gloves and riding-whip and threw open the door of the pavilion.

"Your Highness is weary and the air here insalubrious. Shall we not ride?" he said.

Maria Clementina heard him with a blank stare. Suddenly she roused herself and made as though to pass out; but on the threshold she snatched her whip from him and, turning, flung it full at the mirror. Her aim was good and the chiselled handle of the whip shattered the glass to fragments.