"I see it, I see it," said Clawbonny.
"Yes, yes, so do I! " exclaimed Johnson.
"It is a cloud," said Altamont.
"Land! land!" repeated Hatteras, in tones of absolute conviction.
Even while he spoke the appearance vanished, and when it returned again the Doctor fancied he caught a gleam of light about the smoke for an instant.
[Illustration: "It is a volcano!" he exclaimed.-P.217]
"It is a volcano!" he exclaimed.
"A volcano?" repeated Altamont.
"Undoubtedly."
[Illustration: ]