“Not more than that,” was the reply.

“But we don’t want to get lost among these blooming islands!” said George.

“We could make some sort of mark as we go, to leave a trail, and it would be easy to come out the same way,” was Jack’s sensible suggestion.

“But how about Jimmy; if he came back here, and found us gone, there would be a howl, believe me?” Nick observed.

“It happens by good luck that he’s headed in just the right direction, so I could pick him up on the way,” Jack declared.

“And that would wind up his fishing for today, wouldn’t it?” asked Nick.

“It surely would,” was the reply of the Tramp’s skipper; whereupon the fat boy heaved an audible sigh of gratification.

“Then I vote in favor of doing what Jack says, and having a peep in at the bird colony tonight, if we can,” he remarked.

“We might as well, I suppose,” Josh put in, being somewhat curious himself with regard to what such a roost looked like.

“I say this,” continued Jack, who thought his sudden desire to change their anchorage needed further explanation, “because I understand that these roosts, once so plentiful in Southern Florida, are hard to find nowadays; and we might not have another chance to see the sight.”