Jack Ralston, as the readers of the three preceding stories in this series of Sky Detective adventures already know, had been building up quite an enviable reputation in the Secret Service of the Government, being entrusted with a number of the most important tasks that were cropping up from time to time.
These necessitated not only a cool head, quick decisions and plenty of nerve, but also demanded a thorough knowledge of aeronautics, since many malefactors in these very modern days were taking to the air in order to facilitate their unlawful operations so that it had become necessary to meet them on their own grounds and go them one better.
His best pal was Gabe Perkiser, whose odd name was usually shortened to Perk. He was fully ten years older than Jack and at the time our country entered the World War chanced to be connected with the balloon corps so that for some time he found himself a manipulator of an observation balloon, better known as a “sausage.”
Tiring of this monotonous life, the active Perk took up aviation. Here he was in his element and few there were during those mad months when the American army was breaking the Hindenburg line and pushing through the terrible thickets and machine-gun nests of the Argonne, who attained a higher rating as a fearless pilot than Gabe Perkiser.
He had numerous glorious victories to his credit, having sent down many enemy flyers in blazing coffins but eventually met with a serious mishap that sent him to a field hospital and kept him out of the rest of that frightful campaign.
Recovering in due time, Perk had come back to the States bent on securing some sort of employment that would give him all the excitement his system demanded. This he found when he joined the Northwest Mounted Police of Canada. The fact that one of his parents had been born across the line while the other was a Maine Yankee, gave Perk the opening he desired and his yearning for adventure after that was never left unsatisfied.
But after a while he even began to tire of such a lonely life as his duties entailed and floated down once more to the country of his birth. There by some happy accident Jack ran across him and recognizing a kindred spirit, he induced Perk to apply for a position in the Secret Service.
Still later, when he had been detailed to make use of his ability as an air pilot to carry on with a certain job that had been placed in his hands, Jack remembered Perk. It was essential that he have an assistant aboard his ship and so he negotiated matters so that Perk was ordered to report to him and act as co-pilot for an indefinite length of time, an arrangement that gave both the greatest satisfaction possible.
They were after all a well matched pair. What one lacked the other possessed in abundance. Jack was able to hold his more impulsive comrade in check when safety first became their watchword, and on the other hand when a show of dash and vigor was the order of the day, Perk was apt to take the lead and strike terror in the hearts of the enemy.
Naturally enough inaction became irksome to Perk and he fretted because he loathed remaining quiet when his whole system was calling for accomplishing things.