Sam knocked on the door, and, in his most polite tones said:
"I was asked, my dear professor, to leave this with you with the compliments of the sender."
"Ah, I zank you extremely, sir," said Professor Socrat, bowing low, "I zank ze giver, an' I zank you for ze most polite attention you have bestowed on me."
"You are very welcome, I'm sure," murmured Sam, as he hurried away to join his waiting comrades.
"I don't see anything funny about that," said Jack.
"Wait until he opens it," whispered Sam.
A few seconds later the hidden boys heard the door of the French teacher's room open, and saw him come out.
"It is some meestake," they heard him murmur. "Zis ees for Professor Grimm. I will take it to heem," and he walked along the corridor toward the elderly instructor's apartment.
"Act one," whispered Sam. "Now for the second."
Silently in their slippers the boys followed the French professor to
Mr. Grimm's room.