bomb.

There were very few people in the city and suburbs
who were at that hour out of doors where they could see
the great cloud of water arise toward the sky, and
behold it descend like a mighty cataract upon the
harbour and adjacent shores; but the quick, sharp shock
which ran under the town made people spring from their
beds; and although nothing was then to be seen, nearly
everybody felt sure that the Syndicate's forces had
begun their day's work by exploding another mine.

A lighthouse, the occupants of which had been
ordered to leave when the fort was evacuated, as they
might be in danger in case of a bombardment, was so
shaken by the explosion of this motor-bomb that it fell
in ruins on the rocks upon which it had stood.

The two crabs now took the steel net from its
moorings and carried it up the harbour. This was
rather difficult on account of the islands, rocks, and
sand-bars; but the leading crab had on board a
pilot acquainted with those waters. With the net
hanging between them, the two submerged vessels, one
carefully following the other, reached a point about
two miles below the city, where the net was anchored
across the harbour. It did not reach from shore to
shore, but in the course of the morning two other nets,
designed for shallower waters, were brought from the
repellers and anchored at each end of the main net,