The further Frank went along the cavern wall, the more fearful he became that he would not be able to find Barney again.
This was most dismaying and the young inventor’s heart sank.
But he set his lips firmly.
“I must find him,” he muttered, resolutely. “Separation will be fatal.”
In vain he called.
No answer came back.
The Celt, wherever he was, was certainly beyond hearing.
In this quandary and a state of mind most indescribable, Frank strove to make his way along in the darkness.
He kept on, at intervals shouting for his companion.
But ever that same oppressive death-like stillness reigned.