busy to guide us."

"Good!" exclaimed Bud. "That'll settle the biggest problem before us."

"Yes," Cub agreed. "You're a regular Thomas Edison, Jr., Tee-hee. I think
we'll have to elect you captain of this expedition."

"If we make it," Bud conditioned with a slightly skeptical grin.

"My opinion, if it's worth anything to you guys," said Cub; "is that we'd
better map out our plan thoroughly before we say anything about it to our
fathers. Then we can put our arguments in convincing manner."

"We must finish our plan to-night, for we ought to start not later than
Wednesday morning," Bud argued. "That'll give us one day to get ready
in."

"We'll need all that," said Hal. "Now, let's get busy, boys, and see how
near our plan is finished. It's after 10 o'clock, and I'll have to go
pretty soon. If we go, we'll need--"

"Some food," itemized Bud.

"Yes, enough for us and to feed a starving Robinson Crusoe," amended Cub,
beginning the list on a fresh sheet of paper.

"And drinking water."

"No. 2," commented Cub, as he jotted it down.

"And we ought to have a wireless set on hand," Hal suggested.

"Sure," said Cub. "You bring that and your loop aerial. This set is too
big to transfer on board very well."

"That about completes the list, doesn't it?" asked Bud.

"We'll have to have a permit," said Hal.

"Permit for what?" Bud inquired.

"A permit from Mr. Perry to go."

"You're kidding now," said Bud. "Maybe you think this is all a joke."

"I'm afraid it is, but I'll eat my words--and glad to do it--if Cub's
father and our fathers let us go."

"We've all got some persuading to do, there's no doubt o' that," Cub
admitted; "but I hope we'll succeed. I'll talk to father in the morning
at the breakfast table and call you fellows up an' let you know what he
says. Now I'll call Mr. Robinson Crusoe again and tell 'im I'll call 'im
in the morning and let 'im know what we can do."

He had no difficulty in getting the "island prisoner" again, for the
latter was waiting eagerly for a message of hope. Cub, however, was
cautious in this regard, saying nothing about the plan of himself and his
two radio friends. He merely told "Mr. Crusoe" that he would do the best
he could for him and would call him next day, specifying the hour. Then
Bud and Hal went their separate ways homeward.

At 8:30 next morning Cub called Hal on the telephone and inquired:

"Hello, Hal, did you talk to your folks about our plan?"

"Yes,"