“Is it possible?” said Doc, “Where’d you read that—in the Fly-paper?”

“There’s a trail ghost a hundred miles long out in Utah that nobody on the ground ever saw. Curtis followed it in his biplane,” said Tom.

“Fancy that!” said Doc.

Tom plodded on ahead of them, in his usual stolid manner. “I don’t say you can always do it,” he said; “it’s kind of—something—there’s a long word—sike——”

“Psychological?” said Doc. “We get you, Tomasso.”

CHAPTER V
ADVENTURE OF THE RESCUE PARTY

“I bet there are real ghosts in here,” said Garry, as they climbed the slope which became more difficult as they went along.

“Regular ones, hey?” said Doc.

“Sure, the good old-fashioned kind.”

“No peek-a-boo ghosts,” said Garry.