The Professor looked at Harry with that genial smile which the boys had learned to love. Without answering for the moment, the old man turned to John, as the latter's face lit up.
"I thought you boys were homesick?" he said.
"Well, yes," answered George. "But only for a little while."
"Only homesick for a little while?" and the Professor's hearty laugh followed.
"I mean we are homesick,—that is, we can be cured of it in a little while."
Without relaxing that broad smile, the Professor continued: "I suppose you want to be cured before you go on the voyage of discovery? Is that it?"
"Yes."
"But what do you expect to discover!" asked John, gravely.
"Just what you suggested on one occasion," said Harry.