If, on the other hand, as the result of an incomprehensible revelation, it has been learned that Back Cup is become the retreat of Ker Karraje, if the expedition of the _Sword_ was a first effort against the island, another of a different kind--either a bombardment from a distance, or an attack by a landing party--is to be expected.

Therefore, ere we can quit Back Cup and carry away our plunder, we shall have to defend ourselves by means of Roch's fulgurator." In my opinion the rascals must have gone on to reason still further in this wise: "Is there any connection between the disclosure of our secret--if it was, and however it may have been made--and the double abduction from Healthful House?
Is it known that Thomas Roch and his keeper are confined in Back Cup?
Is it known that the abduction was effected in the interest of Ker Karraje?
Have Americans, English, French, Germans, and Russians reason to fear that an attack in force against the island would be doomed to failure ?" Ker Karraje must know very well that these powers would not hesitate to attack him, however great the danger might be.

The destruction of his lair is an urgent duty in the interest of public security and of humanity.

After sweeping the West Pacific the pirate and his companions are infesting the West Atlantic, and must be wiped out at all costs.
In any case, it is imperative that the inhabitants of Back Cup should be on their guard.

This fact is realized, and, from the day on which the _Sword_ was destroyed, strict watch has been kept.