Read "Tom Swift and His Airline Express" by Victor Appleton online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
The threat which Tom Swift heard the men in the pursuing motor boat mutter-a threat to catch him at any cost-was not needed to cause him to speed up the craft he had appropriated in an endeavor to escape. The sinister character of the men who wore the masks he could easily guess at. As to the others, he had begun to suspect them soon after they obtained work in his plant. Though they were clever mechanics, Tom did not like Kenny and Schlump and so had directed their discharge.
"They either have it in for me on that account," mused Tom, as he made an adjustment to the motor to get more speed, "or else there's something deeper in the plot. I guess they must have chained me up after I blundered into their tunnel. I'd like to know what all this means, but now is not the time to stop and find out. I must get away and ask questions afterward."