"Oh, Rad, him all right," answered Koku. "That is him not see yet, but mebby soon. Only I have to chase boy, an' he make faces at me—boy bring this," and the giant held out the envelope.
"Oh!" exclaimed Tom, and he understood now. Messenger boys frequently came to Tom's house or to the shops, and they took delight in poking fun at Koku on account of his size, which made him slow in getting about. The boys delighted to have him chase them, and something like this had evidently just taken place, accounting for Koku's agitation.
"This is for you, Mr. Baxter, not for me," said Tom, as he read the name on the envelope.
"For me!" exclaimed the chemist. "Who could be writing to me? It's a big firm of dye manufacturers," he went on, as he caught a glimpse of the superscription in the upper left hand corner.
Quickly he read the contents of the epistle, and a moment later he gave a joyful cry.
"I'm on the trail! On the trail of those scoundrels at last!" exclaimed Josephus Baxter. "This gives me just the evidence I needed! Now I'll have them where I want them!"
CHAPTER XX
A HEAVY LOAD
Josephus Baxter was so excited by the receipt of the letter which Koku delivered to him that for some seconds Tom Swift could get nothing out of him except the statement: