tle.

"Wait, I'll light a match," suggested Gus, and did so, and by the
protected but flickering flare our hero looked the handkerchief over.
In one corner there was a faint stamping.

"Looks like 'Rossmore Sanitarium' to me," said Dave, slowly. "Or it
may be 'Bossmore' or 'Crossmore.' The beginning is too faded to be
sure."

"Bossmore Sanitarium?" queried Nat, and then he became silent and
thoughtful. A little later he asked for the bandanna and placed it in
his pocket.

The run in the motor-boat to the school dock did not take long. As
soon as Nat's craft was properly housed, Dave and Gus assisted the
money-lender's son up the walk and across the campus.

"I suppose I've got to report the loss of the rowboat," said Gus,
ruefully.

"It wasn't your fault, Gus," answered Dave. "I'll go with you to
Doctor Clay."

"I can't go with my lame foot," put in Nat, and he hobbled up to his
dormitory, eyed by several curious students, who wanted to know how he
had gotten hurt.

The boys found the master of Oak Hall getting ready for supper. He
looked at them inquiringly as they entered his study, in answer to his
invitation.

"Well! well!" he exclaimed, after listening to their story. "This is
certainly odd! I trust Poole was not seriously hurt."

"I think he was more scared than hurt," answered Dave. "The trap
scratched his ankle, that's all. I am sure it is not sprained or
broken."

"But the rowboat----" put in Gus. "I didn't mean----"

"Do not worry about that, Plum. It was not your fault. I am glad the
wild man did not harm you. I think you got off well. After this you
must be careful about how you go out after this remarkable creature."

The master of the school then asked for more particulars of the
occurrence, and said he would notify the town authorities about the
loss of the rowboat, and ask that a general hunt take place for the
wild man.

"They ought to be able to round him up sooner or later," he added.

There was considerable excitement in the school when it was learned
that the wild man had been heard of again. The boys looked for the
strange individual and so did the town authorities and many farmers,
but nothing came of the search. Nat was called on to exhibit the
bandanna handkerchief and did so. Nobody could make out the first part
of the name on it, for the handkerchief showed a small hole where the
letters should be.

"That is queer," said Dave, to Roger and Phil, when he heard of this.
"