g keenly.

"Do you fellows hear that?" he whispered.

"I hear a rumble of wheels off in the distance," replied Greg.
"The air is so wonderfully still that sound carries a long way
this evening."

Dick ran into the tent, returning with an envelope and a pad of
paper.

"Come along, Dave," Dick requested. "And you'd better bring Tom's
flashlight. It will be dark before we get back."

The battery of the flashlight having had a good rest, now furnished
an excellent light again.

As the two chums set off at a trot Greg inquired:

"Now what are that pair up to?"

"Being one of the four pin-heads belonging to this outfit," Tom
made solemn reply, "I can only guess."

"Then what's your guess?" quizzed Danny Grin.

"From the sound that wagon makes rolling over the rough road,"
Tom answered, "I judge that it's headed for the village. If it
is, Dick is going to send in a note by the driver, and thus save
one or two of us the tiresome sixteen-mile round trip."

Which proved to be a very correct guess, for Prescott and Darrin,
returning three quarters of an hour later, informed the others
that Dick had halted the driver, asking the farmer to wait while
the note was being written.

"I sent the note to the post-master," Dick. went on. "If he
and the other folks in the village take enough interest in the
matter, I imagine a constable will be sent up to-morrow."

"Perhaps to-night," hinted Dalzell.

"If you were a constable," asked Tom, "would you want to be pulled
out of your bed and sent on such a trip in the night time?"

"I'll tell you one thing that we fellows want to do," hinted Darrin,
a few minutes later. "When we go to bed we want to take pains
to leave some food where it can be easily borrowed by our man
of mystery. I've an idea that he has been making night trips
down here once in a while to obtain something to eat."

"Two or three times I've thought I missed food in the morning,"
nodded Greg. "Yet, if our man has been getting all his food here,
then he is a very light eater."

"And welcome to the little he borrowed," Dick finished.

"Drowsiness is overcoming curiosity for me," yawned Reade, as
he rose and strolled toward the tent. "Any of you other fellows
going to turn in?"

"I will," yawned Dalzell, "if you'll permit me to sleep in the
same tent with you."

Fifteen minutes later all of the high school boys were sound asleep.
They all dreamed that night of the Man with the Haunting Face.