What it was we shall learn later.

The boys had a quarter of an hour after classes before going to lunch,
and they immediately sought out Doctor Wallington, whom they found in
his private office.

"Yes, it is too bad that that rascal Crabtree escaped," said the head
of the college. "I can well imagine that you are worried-- since he
has caused you and your friends so much trouble in the past. Let us
hope that the authorities will quickly recapture him."

"Have you had any further word, sir?" asked Dick.

"I had word at eleven o'clock, from the newspaper office. Up to that
time he had not been located."

"We wish to ask a favor," went on Dick, and spoke about the proposed
trip to Plankville.

"Very well, you may go, and in your biplane if you deem it safe," said
the worthy doctor. Secretly he was quite proud of the students'
success with the Dartaway, as it had advertised Brill College not a
little.

"Possibly we won't be able to get back until to-morrow," said Tom. "We
may be detained, or it may storm

"Take your time on the trip. Only be careful that you have no
accidents."