She paused to give her words weight, for she knew their value.

"Madam," said Mendoza, "the matter I keep from you does not touch my honour, and you may know it, so far as that is concerned. But it is one of which I entreat you not to force me to speak."

Doña Ana softly passed her arm through his.

"I am not used to walking so fast," she said, by way of explanation. "But, my dear Mendoza," she went on, pressing his arm a little, "you do not think that I shall let what you tell me go further and reach any one else--do you? How can I be of any use to you, if you have no confidence in me? Are we not relatives? You must treat me as I treat you."

Mendoza wished that he could.

"Madam," he said almost roughly, "I have shut my daughter up in her own room and bolted the door, and to-morrow I intend to send her to a convent, and there she shall stay until she changes her mind, for I will not change mine"

"Oh!" ejaculated Doña Ana, with a long intonation, as if grasping the position of affairs by degrees. "I understand," she said, after a long time. "But then you and I are of the same opinion, my dear friend. Let us talk about this."

Mendoza did not wish to talk of the matter at all, and said nothing, as they slowly advanced. They had at last reached the passage that ended at his door, and he slackened his pace still more, obliging his companion, whose arm was still in his, to keep pace with him. The moonlight no longer shone in straight through the open embrasures, and there was a dim twilight in the corridor.

"You do not wish Dolores to marry Don John of Austria, then," said the Princess presently, in very low tones. "Then the King is on your side, and so am I. But I should like to know your reason for objecting to such a very great marriage."

"Simple enough, Madam. Whenever it should please his Majesty's policy to marry his brother to a royal personage, such as Queen Mary of Scotland, the first marriage would be proved null and void, because the King would command that it should be so, and my daughter would be a dishonoured woman, fit for nothing but a convent."