“Impossible to tell what is trouble. Appears to be in gas bag but not sure. Should send help, if possible.”

“That settles it!” cried Jack, “we’ll go after her.”

“I ought to say no, but somehow, all I can say is ‘Go ahead, my boys, and good luck’!” cried the captain, clasping the boy’s hand.

No time was to be lost and the boys hastened from the wireless office to where the Electric Monarch stood surrounded by an admiring crowd. There was great excitement as the boys were seen climbing on board. People came running from all parts of the grounds for, early as the hour was, there was still quite a small crowd scattered about inspecting the various air craft.

“What is it?” “Are they going to make a flight?”

These and a hundred other questions were bandied about from mouth to mouth. The boys worked like beavers and it was evident even to the dullest-witted onlooker that there was something unusual in the wind.

In ten minutes everything was ready. At the last moment Jack had requested a coil of good strong rope, which was loaned to him by one of the dirigible men. When this had been taken on board all was ready for the start. The boy took his place in the pilot house and the others assumed their stations. Ned oiled up the motor and Tom saw that the stern propeller bearings were in good working order.

“Good-bye and good luck!” hailed the captain as Jack’s hand sought the starting switch.

At that moment, and just as the first impulses of the motor throbbed through the frame of the Electric Monarch, there was a sudden motion in the crowd.

“Lemme through!” bawled a voice, which Ned Nevins recognized with a start. It was Hank Nevins, his ne’er-do-well cousin. Close at Hank’s heels came Miles Sharkey. The two elbowed their way through the crowd, followed by a thickset man who bore the unmistakable stamp of an officer of the law. Miles Sharkey was waving a paper above his head.