"There she goes!" he shouted.
They all looked to behold a wonderful thing. As easily as though it was some conjuring trick the rock began to settle down in the water. Lower and lower it went until only the tallest jagged points showed above the waves, whose crested tops the keel of the ship now almost touched.
"That isn't the explosion!" exclaimed the professor. "The fuse has not had time to get to the powder yet."
"But the rock is disappearing!" yelled Andy.
As he spoke the big pile of volcanic stone vanished completely and the Porpoise floated easily on the surface of the sea.
"Hurrah!" cried Mark.
"It am de most kloslostrous occurranceness dat eber transpositioned itself!" exploded Washington.
"Let's row back to the ship now!" cried Mark.
"Not yet!" said the professor quickly. "The dynamite has not gone off yet."
"There it goes now," remarked Jack.