"An' he's a mighty odd man," supplemented Washington.

They reached the house a few minutes later, and went in the front
door. The sounds of two voices came from the library. One of
them was that of Professor Henderson. He was saying:

"I tell you it can't be done! It is utterly impossible! It is
madness to think of such a terrible trip!"

"And I tell you it can be done--it shall be done and you are the
very man to accomplish it," insisted the other. "You and your
young assistants will succeed. I know you will. You will go
with me, and we will make the longest journey on record."




CHAPTER IV

WONDERFUL PLAN


"I wonder what they can be talking about?" asked Mark of Jack, as
they paused outside the library door.

"I don t know, but it concerns us."

"What makes you think so?"

"Because, didn't you hear the stranger speak of us as the 'young