“I guess I can do it,” answered Nick Paxton, and shuffled to the blackboard. He soon had a mass of figures written down, but they seemed to lead to nowhere, and Josiah Crabtree was more put out than ever.

“That is all wrong, Paxton!” he said. “You are a blockhead! Take your seat!” And Paxton did so, with his head hanging down.

In the meantime the other classes had been dismissed, and those kept in could hear the other cadets walk through the halls and enter the mess room. Then followed a clatter of knives and forks and dishes. These sounds made many cadets besides Stuffer feel an emptiness in the vicinity of their belts.

“As no one appears to know the algebra lesson, we will take time for studying,” said Josiah Crabtree. “I will examine you again at one o’clock. The room will be quiet.”

Quarter of an hour dragged by slowly. The boys wanted to talk the situation over, but Josiah Crabtree would permit no whispering. Presently the teacher arose and walked to the door.

“I will be back shortly,” he said, in a cold voice. “I want absolute order maintained during my absence.” Then he went out, shutting the door after him. A strange clicking followed.

“He has locked us in!” exclaimed a youth who sat near the door, in a hoarse whisper. “Now what do you think of that?”

CHAPTER XIV
IN WHICH THE STORM GATHERS

“I guess he has gone off to get his own dinner, and he is going to leave us starve!” groaned Stuffer. “I’m not going to stand it—no, sir!” And he jumped up from his desk and began to walk around nervously.

“This is certainly a new move,” said Jack.