who shoved it
down I am certain. He probably did not know of the other exit and
imagined that we would be imprisoned with no way of getting out."

"He looks as if he wished you and everybody else dead," said Billy. "He
has a face to make you have bad dreams. Well, we have proved two things
to-day."

"That your pinhole camera is all right," said Percival, "and that this
mysterious man with the white mustache is still in the neighborhood.
H'm! I should think he would avoid it."

"I hoped he might," said Jack musingly. "It is clear enough from this
print that he did not mean any good to you and me, Dick."

"Yes, and as Billy says, his face is one to haunt you. Well, if he is
hanging around these woods we don't care to make any more exploring
trips until we are sure he is out of them. What are you going to do with
the big print, Jack?"

"Keep it if the man makes any more trouble," said Jack shortly. "It will
be of use to detectives in identifying him."

"I suppose I had better not show my print?" said Billy questioningly.
"You would rather I would not? I don't know what you are to this fellow,
Jack, and I don't want to know. You say he is not your father, and that
is enough for me."

"No, he is not," said Jack, "and just now I don't care to say any more
about it. Show your plate if you want to convince the boys that your odd
sort of camera can do something. They may not notice the man on it. They
will probably simply notice the trees and rocks, which are very sharp
and distinct."

"All right," said Billy. "I would like to show it to those wiseacres
just to convince them that the thing was all right, and to get the laugh
on them."

"Revenge is sweet," laughed Percival.

"Of course it is," said Billy, "but I guess we fellows had better get to
bed or the doctor will be giving us fits. Is there time to show this
picture to the fellows?"

"I should think so," replied Jack. "I will keep the enlargement in case
I need it, and I would rather you did not say anything about it to the
boys."

"Of course not!" said Billy promptly.

Billy and Percival now took their leave and Jack put away his developing
outfit, locked the enlargement in his bureau drawer and turned on the
lights and threw aside the curtains, so that any one in any of the other
cottages or in the Academy could see him.

"Still in the neighborhood," he muttered, as he sat by the window and
looked out on the calm Autumn night. "I wish he would leave it