Seeing the man, she added: "O cruel dream!" and reached for the dagger that lay on the ground beside her.

The man seized it first. The action fully aroused her to the reality of her position.

For a moment the two stared at each other in mutual perplexity. They were parts of an enigma which neither understood, though each held a portion of the clew.

Zillah was the first to break the silence.

"What is your message to me by the mark of the circle?"

"You know its meaning better than I," rejoined the stranger, bowing in profound respect.

"Am I to go with you?"

"I am to do your bidding, my lady."

The man made obeisance, touching the ground with his forehead. "My life is pledged to bring you to him who wrought the symbol on my breast."