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."

"Tell us what happened," urged the guardian.

"The boys found the false trail we made, as well as the one we did not
wish them to find. They nearly discovered Jane, too. She sat in a tree
while they made their plans nearby. Then Jane fell out of the tree."

The girls shouted.

"And what do you think?" continued Harriet. "The boys were only a short
distance away. They hurried to the scene, and when they got there they
found--"

"Jane," finished Tommy.

"No. A man. A half-breed from what Jane says. He went away in a canoe.
He did not see her."

Miss Elting regarded Harriet reflectively.

"Yes, I think it was the same one," said Harriet in answer to the
guardian's unspoken question. "It is evident that our presence here is
suspected by others than the Tramps. I would suggest that we carry out
our plans to-night, then move away from here to-morrow."

CHAPTER XXII

SPOOKS OF THE LONESOME ISLE

"Yes, I know the way. I could go there blindfolded," answered Harriet,
in reply to a question from Miss Elting.

The hour was nine o'clock in the evening. The night was very dark,
though the stars were shining. It had been decided that Margery and
Tommy should remain on board the "Red Rover," putting out all lights and
locking the doors, though no anxiety was felt about them, as there was
scarcely a chance that their presence would be disc