"Under water? Bless my sponge bath! You don't mean it!"
"Yes. Dad has completed the submarine he was working on when we were off in the airship, and it will be launched the day after to-morrow."
"Oh, that's so. I'd forgotten about it. He's going to try for the Government prize, isn't he? But tell me more about it. Bless my scarf-pin, but I'm glad I met you! Going into town, I take it. Well, I just came from there, but I'll walk back with you. Do you think—is there any possibility—that I could go with you? Of course, I don't want to crowd you, but"
"Oh, there'll be plenty of room," replied the young inventor. "In fact, more room than we had in the airship. We were talking only the other day about the possibility of you going with us, but we didn't think you'd risk it."
"Risk it? Bless my liver! Of course I'll risk it! It can't be as bad as sailing in the air. You can't fall, that's certain."
"No; but maybe you can't rise," remarked Tom grimly.
"Oh, we won't think of that. Of course, I'd like to go. I fully expected to be killed in the Red Cloud, but as I wasn't I'm ready to take a chance in the water. On the whole, I think I
