Dick knocked lightly on the door, and receiving no answer, knocked again. Still there was silence.
"Must be pretty heavy sleepers," murmured Tom. "Try the doorknob."
Dick did so, and found the door locked. Then he knocked again, this time louder than before.
"You'll knock a long time to wake them up," said a voice behind them, and turning they saw Frank Holden grinning at them.
"Hello," said Dick softly. "Why, what's wrong?"
"Nobody in that room, that's all," answered the sophomore.
"Don't Flood and Crossley sleep here?" asked Sam.
"Yes, when they are at college, but they got permission to go home yesterday, and they went, and they won't be back until Monday."
At this Dick whistled softly to himself.
"It's all up, so far as finding out who used the wheels is concerned," he said to his brothers. "Whoever took them did so, most likely, without permission."
"I guess you are right," returned Tom.
"Anything I can do for you?" asked Frank Holden pleasantly.
"Nothing, thank you," replied Dick; and then
