“Temporarily,” answered the inventor.

A quarter of an hour passed slowly by.

At the end of that time the distant booming of a gun was heard coming from the direction of the forts.

A shell flew through the air and landed in the lagoon, not far from where the Jove lay.

Frank gave a start.

A troubled look crossed his face.

“That’s bad!” he muttered.

“Whar dat shot cum from?” asked Pomp, uneasily.

“One of the forts.”

“Faith! it’s bombarded we are, thin?” asked Barney.