[Also in a low voice.] What is it?

Irene.

A face that is staring at me.

Professor Rubek.

[Turns involuntarily.] Where? [With a start.] Ah——!

[The Sister of Mercy’s head is partly visible among the bushes beside the descent to the left. Her eyes are immovably fixed on Irene.

Irene.

[Rises and says softly.] We must part then. No, you must remain sitting. Do you hear? You must not go with me. [Bends over him and whispers.] Till we meet again—to-night—on the upland.

Professor Rubek.

And you will come, Irene?