That is his voice.

Oh! if you can, save him, too." Now there was much suppressed excitement, and some one thrust a pair of field-glasses into my hand, but either they were wrongly set or the state of my nerves would not allow me to see through them.

So Quick took them and reported.
"Tall, slim figure wearing a white robe, but at the distance in this light can't make out the face.

One might hail him, perhaps, only it would give us away.

Ah! the hymn is done and he's gone; seemed to jump into a hole in the rock, which shows that he's all right, anyway, or he couldn't jump.