"But who—what?" gasped Jane.
"I believe he is the man who has been following us and trying to drive us away. I can't think of any other reason for his acting as he has. He undoubtedly knows that we are somewhere about, and has been looking for us just as the boys themselves have been doing."
"Good gracious," muttered Crazy Jane. "I'm sorry I didn't stay on the boat."
"And I am glad you did not. You surely have discovered something. Would you know the man if you were to see him again?"
"Yes."
"Then we will see if we can't discover him again. I believe we are getting near to a solution of the enemy that has been following us. Either we must settle him or he will do us some injury. I am glad the boys saw him, too. I am going to suggest to Miss Elting that we go back to our old anchorage to-morrow. To-day we have other plans on hand. And that reminds me. It is getting dark and it is time we were getting back to the boat. We will go down the rope when we reach there. Come."
The two girls hurried along, keeping a sharp lookout, not knowing but that the boys might be lying in wait for them. They reached the rocks above the houseboat. All was quiet below. Jane went down the rope first, landing in the creek. Harriet did the same, and none of their companions discovered either of them until Jane had climbed aboard the boat and appeared dripping before them.
"Here we are, girls," laughed Jane.
"Did you discover anything?" asked Miss Elting eagerly.
"We did."