"Come on out in the shed and take a look at the Red Cloud," proposed the young inventor. "Mr. Sharp isn't quite ready to start yet, and I'll explain some things to you."
The big shed was deserted when the lads entered, and went to the loft where they were on a level with the big, red aluminum tank. Tom began with a description of the machinery, and Ned followed him with interest.
"Now we'll go down into the car or cabin," continued the young navigator of the air, "and I'll show you what we do when we're touring amid the clouds."
As they started to descend the flight of steps from the loft platform, a noise on the ground below attracted their attention.
"Guess that's Mr. Sharp coming," said Ned.
Tom leaned over and looked down. An instant later he grasped the arm of his chum, and motioned to him to keep silent.
"Take a look," whispered the young inventor.
"Andy Foger!" exclaimed Ned, peering over the railing.
"Yes, and Sam Snedecker and Pete Bailey are with him. They sneaked in when I left the door open. Wonder what they want?"
"Up to some mischief, I'll wager," commented Ned. "Hark! They're talking."
