papers, and to deliberately fire on us, with the chance of disabling us, seems worse than barbarous."
"Well, we won't give 'em another opportunity," commented Mr. Damon.
"No, indeed, not this city, but who knows but what the example may spread? We may be fired at the next town we sail over."
"Then steer clear of the towns," advised Tom.
"Impossible. We must pass over some, but I'd like to solve this mystery."
The day passed without further incident, though they did not go low enough down over any city to drop any messages. It was decided that it would not be safe.
"We'll take a chance at night," suggested Tom, and that evening, approaching a good-sized town in the dusk, several of the weighted envelopes were dropped overboard. Doubtless persons walking along the street, who were startled by hearing something fall with a "thud" at their feet, were much startled to look up and see, dimly, a great, ghostly shape moving in the air. But there was no shooting, and, eventually, some of the messages reached Mr. Swift, in Shopton. But he could not answer them for the airship kept on the move.
The night was spent floating in the air, with the
