He traced the wires down into the metal, asbestos-lined sheathing cable, and was still not enlightened about the discovery. It was not necessary to have two wires. One was heavy enough for the hundred-and-ten volt current that came in from the mains.
“That wire, being twined around the other, makes me think it was added—after the first one was put in,” he declared.
“I wish I could trace it,” he added.
He tried.
Sandy, when he turned around, ten minutes later, knew all that the inside of the haunted hangar could reveal.
Another five minutes, concentrated close to a certain spot on the outside of the building, gave him his final clue.
But instead of waiting to tell his chums his great discovery, instead of keeping vigil, Sandy went away from there as fast as he could walk.
All afternoon he was as busy as a boy trying to keep ten tops spinning!
CHAPTER XXVIII
NIGHT IN THE HANGAR
Never was a returning prodigal greeted with more delight than was Sandy when, close to dusk, with a parcel under his arm, he joined Dick and Larry inside a little Summer house in the Everdail estate grove.