“I think not,” replied Von Bulow. “We had better turn back.”
But even as he said this he saw a queer specimen of fish slowly make its way into a coral cave near.
“I must have that fellow,” he exclaimed, excitedly. “He is a new variety.”
Without a thought of possible peril the professor darted in pursuit. Into the cavern he went.
Bell stood and looked after him somewhat doubtfully.
The old sea captain did not reckon but that Von Bulow was amply capable of taking care of himself, though really he regarded it as a trifle risky.
The professor turned an angle of the cavern and was out of sight.
The captain was a trifle weary with the exertion of climbing over the slippery piles of seaweed, and did not follow.
He waited what seemed to him an interminable time.
The professor did not come out of the cave.