Keep on and we'll follow.

I don't want to think of what may happen." She turned without a word and went up the steep incline.
"What d'you think of your soft girl now ?" panted Buck at the ear of Haines.

The latter flashed a significant look at him but said nothing.
They reached the top of the canyon wall and passed on among the boulders.
Kate had drawn back to them now, and they walked as cautiously as if there were dried leaves under foot.
She had only lifted a finger of warning, and they knew that they were near to the crisis.

She came to the great rock around which she had first seen the entrance to the cave on the day before.

Inch by inch, with Buck and Lee following her example, they worked toward the edge of the boulder and peered carefully around it.
There opened the cave, and in front of it was Joan playing with what seemed to be a ball of gray fur.