“I see it!” Chick was equally animated. “With the helicopter, the ‘ghost’ projector could hover above the clouds, well hidden.”
“Yes, and ‘throw down’ from that makeshift ‘projection room’ onto a cloud,” exclaimed Garry.
“He could hover very high,” Don contributed. “There he could see an airplane, coming, at a distance, gauge its direction, swing his own ship and descend to a point over a cloud. Hidden there, with his light on, and his film going through, the spectre would appear on smoke or clouds right in front of the coming airplane.”
“That’s exactly how, and from where, the ghost comes!” Garry agreed. “Now, here’s a suggestion, Don! Let’s ‘show’ everybody!”
“I don’t quite see—” began the young pilot.
“It’s almost midnight.” Garry consulted his wrist watch. “The Palace has finished the second show. The control chief and the others will all come here to see that everything is right, and for the arrival of the midnight passenger ’plane from the Maine Summer resorts. I’ll stay here and you, Don, and Chick, take the Dart, fly to where the helicopter is, with the projector and film, and when I give a beam signal that they are here, you two, in the helicopter, pick a cloud they can all see, and ‘put on your show.’ The minute that everybody sees how simply it is done, the ghost’s claws will be pulled—no pilot will be afraid and maybe—maybe your uncle will get a whale of a lot of business.”
“Yes!” Chick was enthused. “And Garry can see whose face betrays guilty knowledge, when the actual ‘spook’ is projected.”
“But—” Don saw the difficulties, “this isn’t the same film, hidden in the locker. Besides—where will we get the light?”
“The ‘ghost’ must get light from somewhere—” Chick began.
A flash of inspiration made him bang his palm on the table.