Four boats were at once lowered and rowed to the mouths of those nearest. The sounding operations quickly showed that in three of them there was but two feet of water; the other was somewhat deeper, but there was still two feet less water than the Furious drew. The deep part was very narrow and winding.

“It may be this one that the schooner has gone up,” the captain said. “I have no doubt she draws three or four feet less than we do, and, knowing the passage perfectly, she could get up it easily. I hope, however, we shall find something deeper presently.”

The next three days were spent in circumnavigating the sand-banks and in sounding the various channels, but at last the captain was obliged to admit that none of them were deep enough for the Furious, although there were fully half a dozen by which vessels of lighter draught might enter.

“I am ready to run any fair risk, Mr. Farrance,” he said, “but I daren’t send a boat expedition against such a force as that, especially as they have no doubt thrown up batteries to strengthen their position. They must have any number of cannon which they have taken from ships they have captured.”

“It would certainly be a desperate enterprise,” the first lieutenant agreed, “and, as you say, too dangerous to be attempted now.”

“Gilmore,” Forster said, as the midshipmen met at dinner, “you are always full of ideas; can’t you suggest any way by which we might get at them?”

“I am afraid not,” Will laughed. “The only possible way that I can see would be to sail away, get together a number of native craft, and then make a dash at the place.”

“What would be the advantage of native craft over our boats,” one of the others said scoffingly.

“The great advantage would be that, if we had a dozen native craft, the men would be scattered about their decks instead of being crowded in boats, and would therefore be able to land with comparatively little loss.”

“Upon my word,” one of the seniors said, “I think there is something in Gilmore’s idea. Of course they would have to be very shallow, and one would have to choose a night when there was just enough breeze to take them quietly along. At any rate I will run the risk of being snubbed, and will mention it to one of the lieutenants. ’Pon my word, the more I think of it the more feasible does it seem.”