As Ned, Bob and Jerry approached they heard some one saying:
“But I must have it! I tell you I must get it. It is exceedingly valuable, and you ought not to stop me.”
“Stop you! I’ve stopped you all right!” came the vigorous tones of Kelly, the sentry.
“But I must get through. I must!”
“And I say you must not! Trying to run the guard under my very nose; that’s what you were trying to do. But I caught you! You’re a German spy—that’s what you are!”
“No, I assure you that you are mistaken,” came a gentle voice in answer. “I am only after some new specimens——”
Ned, Bob and Jerry gave a shout.
“It’s him, all right!” cried Jerry, enthusiastically if not grammatically.
“I thought it sounded like him,” added Ned.
“Hello, Professor Snodgrass!” called Bob. “It’s all right. Keep quiet. We’ll be with you in a minute!”