"But what are we going to do?" queried Grace blankly. She had ceased eating candy now.
"Well, it's very evident that we're not going the right way," went on Betty. "The farther we go the more sure I am that we were never on this part of the stream before. So I think we had better turn back, and, if necessary, start over again from where we had lunch.
"We may be able to see the right turn by starting over once more. Then we will be all right. Once I am started on the right track I think I can follow it. We have a compass, and I noticed, in a general way, which direction we came, though I was not as careful as I should have been."
"But it will be very dark," objected Amy. "It is getting darker all the while."
"That will be the worst of it," admitted Betty frankly, "and if we find we can't go on, we shall have to tie up for the night. We might do worse."
"But anchor far enough from shore so that nothing can—get us," pleaded Grace. "No alligators, I mean."
"Don't worry—they won't come aboard," declared Betty.
"These rivers are split up into a lot of side brooks, bayous and such things," said Mollie. "Tom mentioned that, and he said that often one
