Harris scribbled the note. When it was finished, Matt had him tie the small sheet of paper around a bolt taken from the tool box.
"We'll fly low over the park near the Art building," said Matt, "and you yell to the first policeman you see, Harris, and drop the note."
There was no need of yelling to attract anybody's attention in the park, for every person was looking upward at the air ship.
Harris was not long in sighting an officer, and his own uniform demanded the officer's respectful attention.
The note was dropped, and those in the air ship could see the policeman pick it up, untie the sheet of paper and read the communication.
Before the Hawk got out of sight of the park, Matt and the rest had the satisfaction of seeing the policeman wave his hand to signify that he understood, and then hurry off toward the lake.
"I guess that will cook Brady's goose for him," muttered Harris complacently.
"Are you satisfied with the Hawk, Mr. Jameson?" inquired Matt.
"I never imagined that an air ship had been invented which could be manœuvred as you have manœuvred this one," said Jameson. "I'm so well satisfied with the Hawk that I will give three thousand for her."
Carl gave a gasp and stared at Ferral, only to find that Ferral was already looking at him.