your second question, you are here in my shop. As to the third, those
wheels are parts of my great invention. But I will tell you about that
after a while. I must give you some medicine now, and something to eat.
Here, Washington!"

"Comin', Perfessor!"

Jack and Mark were more surprised than before when they saw a big
colored man, seemingly as strong as an ox, coming toward them with two
steaming bowls of beef broth. Washington was grinning with delight.

"Dis am de best beef stew dat eber transpositioned itself into yo'
vicinity!" he exclaimed, setting the bowls down on a table near the bed.

"Now, Washington," cautioned the old man. "No big words, remember."

"All right, Perfessor," was the answer.

"Do you boys feel like eating?" asked the aged inventor.

"I do," replied Jack. "There was a time, though, when I thought I'd
never get a chance to eat again. That was just before the crash."

"You were both knocked unconscious," the professor went on. "Washington
and I happened to be near by and brought you here. Fortunately I am
something of a doctor as well as an inventor, and I used a strong
medicine I have."

"I'm sure we're much obliged to you," answered Mark.