thinking over the matter. "Let's see if we can't
do this on our own hook. Then if we make a mistake we won't be laughed
at."

"But when can we do it?" Andy asked.

"This very night. It couldn't happen better. Nearly all the fellows will
be out of Wright Hall in a little while. We're booked to go, and
Mortimer knows it, for I was making arrangements with Bert Foley about
our seats, and Mortimer was standing near me. He came to borrow ten
dollars, but I didn't let him have it. So he will be sure to figure that
we'll be out to-night."

"But how do you know he'll come to our room?"

"I don't know it. I've got to take a chance there. But we can hide down
in the lower corridor, and watch to see if he comes in this dormitory.
If he does, knowing that 'most all the fellows are out, it will look
suspicious. We can watch for him to go out and then tackle him. If he
has the goods on him the jig is up."

"Well, I guess that is a good plan," agreed Andy. "I hate to have to do
it, but we owe it to ourselves, to the college and to poor Link to
discover this thief. I only hope it doesn't prove to be Mortimer, but it
looks very bad for him."

"We can go farther than that," went on Dunk. "We can leave some marked
money on our table, leave our door open and see what happens."

"It sounds sort of mean," spoke Andy, doubtfully; "but I suppose if we
have to have a trap that would be the best way to do it."

"Then let's get busy," suggested Dunk. "He may not come to-night after
all. We may have to watch for several nights. Meanwhile we'd better
telephone the lawyer that we're on a new lead."

This was done, and the man in charge of Link's case agreed to see Andy
and Dunk early the next day to learn what success they had.

Then the trap was laid. The two who were doing this, not so much to
prove Mortimer guilty as to free Link and others upon whom suspicion had
fallen, went about their work.

As Dunk had surmised, Wright Hall was almost deserted. They found a
hiding place in the lower corridor where they could see whoever came in.
Their own door they left ajar, with a light burning. On the table where
they had been put, as if dropped by accident, were a couple of marked
bills.

"If he takes those, we'll have him with the goods," said Dunk, grimly.

Then he and Andy began their vigil.

CHAPTER XXXIV

CAUGHT

The silence got on the nerves of Andy and Dunk. It was very quiet in
Wright Hall, but outside they could hea