"Dis Koku!" came the guttural voice of the giant from the other side of the door. "Koku want more work. Hall, him all clean. Maybe I help dat no-good Rad now."
"No you don't, Koku!" exclaimed the young inventor, with a laugh. "You keep away from Rad. You'll get to disputing again and interrupt me, and I have business on hand. Here, wait a minute. I'll find something for you to do," he went on, opening the door to disclose the immense man standing outside, a broom in his hand seeming like a toy.
"Excuse me one moment," went on Tom to his friends. Taking up his desk telephone he called one of the shops, asking: "Have you any heavy work on hand this morning; lifting big castings, or anything like that? You have? Good! I'll send Koku right over."
Turning to the giant who apparently had not paid much attention to the talk over the wire, Tom said:
"Koku, go over to shop number ten, ask for the foreman, and he'll keep you busy. There are some five-hundred-pound castings that need assembling, and you can help him."
"Good!" exclaimed the giant, with a cheerful grin. "Koku like big work—no like sweep. Good for women and Rad, but not for Koku!"
"He spoke the truth there," remarked Ned Newton, as the giant stalked down the hall. "I never saw such a strong man. I'm afraid to shake hands with him, for fear I'll be minus a couple of fingers in the operation."
"Well, he's disposed of," remarked Tom, as he closed the door. "And now, Mr. Hardley, I'm at your service, as far as listening to your proposition is concerned."
"Thank you. I shall endeavor to be brief," remarked the visitor. "Am I correct in assuming that you have had some experience in submarine work? I believe Mr. Damon mentioned something of that sort."
"Submarine work? Bless my hydrometer, I should say so!" exclaimed the eccentric man. "And not only in submarine, but in aeroplane! but you don't need any aeroplanes, my dear Mr. Hardley. It's the submarine end of it that you are interested in, as far as Tom Swift is concerned. Now go ahead and tell him what you told me, and how many millions there are in it."