“You mean that you cannot think of any other plan of making your craft ascend and descend in the water?”
“That’s just it. I’m up against a stone wall. They call you the ‘Boy Inventors.’ I’ve heard how you have aided other inventors in trouble. Can you think of a way to make the White Shark dive?”
“Not off-hand,” declared Jack positively; “but I promise you we’ll give the matter thought and do our best to help you. And now, Mr. Dancer, we should be getting back. It is late and my father, for whom we ran into town to purchase some electric apparatus, will be worrying about us.”
“But the wreck of the car has blocked the road and I have no vehicle handy that you can use.”
“I thought I noticed a wireless apparatus on the White Shark; is it working?” asked Jack.
“Yes; but its radius is limited. You see, I had to install the aërials inside the hull of the submarine; but with the powerful current I can command I can send a message up to twenty miles, or even more, under favorable conditions.”
“If you don’t mind, then, I’ll send a message to High Towers asking Jupe, that’s our colored man, to come right over with the automobile.”
“What, you have a colored man who can take wireless messages?”
“Yes indeed, Jupe learned all of that on our trip to the Gulf of Mexico.”
“True, I recall now reading about the colored man in some magazine account of your adventures. You must have had a stirring trip and some exciting times.”