"Get away wid yez, ye spalpane!" shouted Barney, and one of his wildly waving fists struck the sentinel between the eyes and knocked him over instantly.

"Remember it is vinegar and milk that you want, and you must have it," shouted Frank, in the Irish lad's ear. "Every second you delay about procuring it makes your chances all the more desperate."

"Begorra! Oi'll hiv it directly, av there's anything av th' sort in th' ranch!"

Then Barney made a break for the stairs, with Hans a close second, and the boys could not resist the temptation to rush after them.

Never before had there been such an uproar heard in Fardale Academy, and the commotion had brought Professor Gunn and his two principal assistants, Professor Jenks and Professor Scotch, from their rooms on the floor below the "Cockloft."

"What can be the meaning of this outrageous hub-bub?" cried Professor Jenks, who, on account of his exceeding height, was known as "High Jinks."

"Goodness knows!" exclaimed Professor Gunn, peering over his spectacles in a horrified way at his companions. "It must be a mutiny——"

"Or a murder!" chattered Professor Scotch, who was a very small man, and was generally known as "Hot Scotch," because of his fiery red hair and peppery temper.

"Let us proceed together to investigate," came resolutely from Professor Gunn's lips.

"All right," said High Jinks, bravely. "Lead the way, sir."