"No, and if I can keep him and Eradicate from trying to
pull off rival detective stunts, or 'deteckertiff,' as Rad
calls it, I'll be all right. Now let's have another go at
that carburetor. There's our weak point, for it's getting
harder and harder all the while to get high-grade gasolene,
and we'll have to come to alcohol of low proof, or kerosene,
I'm thinking."

"I wouldn't be surprised, Tom. Well, perhaps we can get up
a new style of carburetor that will do the trick. Now look
at this needle valve; I've given it a new turn," and father
and son went into technical details connected with their
latest invention.

These were busy days at the Swift plant. Men came and
went--men with queerly shaped parcels frequently--and they
were admitted to the big new building after first passing
Eradicate and then Koku, and it would be hard to say which
guard was the more careful. Only, of course, Koku had the
final decision, and more than one person was turned back
after Eradicate had passed him, much to the disgust of the
negro.

"Pooh! Dat giant don't know a workman when he sees 'im!"
snorted Eradicate. "He so lazy his own se'f dat he don't
know a workman! Ef I sees a spy, Massa Tom, or a crook, I's
gwine git him, suah pop!"

"I hope you do, Rad. We can't afford to let this secret