CHAPTER VI
GETTING OFF THE ROOF
For a few minutes Mr. Sharp was so engrossed with looking underneath the craft, to ascertain in what condition the various planes and braces were, that he paid little attention to the old maid school principal, after his first greeting. But Miss Perkman was not a person to be ignored.
"I want pay for the damage to the tower of my school," she went on. "I could also demand damages for trespassing on my roof, but I will refrain in this case. Young ladies, will you go to your rooms?" she demanded.
"Oh, please, let us stay," pleaded Mary Nestor, beside whom Tom now stood. "Perhaps Professor Swift will lecture on clouds and air currents and and such things as that," the girl went on slyly, smiling at the somewhat embarrassed lad.
"Ahem! If there is a professor present, perhaps it might be a good idea to absorb some knowl-
