"Heaven will reward you for it, sister."

The creaking of a key in a lock could be heard, and the door opened.

"Come in quickly, brother," the nun said.

But Crevel had prudently withdrawn, and made way for Diego. The latter seized the portress by the throat, and pressing her neck in both his hands like a vice, whispered in her ear—

"One word, wretch, and I kill you!"

Horror-struck by this sudden attack, the old woman fell back unconscious.

"Deuce take the old devil!" Diego said, angrily; "who can guide us now?"

He tried to recall the sister to her senses, but seeing that it was impossible to do so, he made a sign to his men, who had rushed into the convent after him, to gag her and bind her securely. Then, after leaving two smugglers as sentries at the gate, he took the bunch of keys with which the portress was entrusted, and prepared to enter the building occupied by the nuns.

It was no easy task to discover in this immense Thebaïs the cell occupied by Doña Maria—for our readers will have understood that the object of the expedition attempted by Diego, was to carry off that young lady. It remains for us now to explain what the half-breed intended to do with her, and by what reasons he had been urged to commit such a deed.

We must say in the first place, that Diego had the most lively desire to attach to his cause, Leon, whom he knew to be a man of bravery and energy, and was urged to do so not only because he intended to give him a command in the Araucano army, but also because he had no sooner parted with Leon after the altercation which they had while escorting the family of General Soto-Mayor, than he regretted the rupture, now sought every means in his power to effect a reconciliation with Leon, the only person in the world he loved.