"Ah! professor, is it you? Sorry—in something of a hurry—"
"Hold on; some one wants to see you."
"Have to do later."
"Don't say so, John. Important, I tell you."
"So is this. Good-by."
The professor is not so easily shaken off, but tightens his hold. John will have to dislodge him by muscular force.
"Are you coming?" asks the Sister.
"Yes, when I have broken loose from the hands of this madman."
He turns upon the professor.
"John, be careful. Cool off; you are excited."