“But the sight has been seen for a long time—years before we ever thought of coming here,” urged Don.

“You don’t actually believe in it?” asked Case.

“There is something strange about it,” was all the boy would say.

“Will it ride again to-night?” asked Case. “If I thought it would I’d sit up and watch for it. I’m interested in this ghost.”

“It is never twice seen on the same night,” Don replied. “In fact it comes only when the moon reaches just such a position in the heavens. Always when the rider moves down the ledge you will see the shadow of that granite monument resting on the white boulder which nestles like a setting in that cliff.”

“Who compiled all the ignorance there is in the world regarding ghosts?” Case grinned. “I guess if people got a chance to return to earth after death, they wouldn’t be monkeying around in fool ways like that! This is some trick! You’ll see if we don’t get to the bottom of it before we go away! Headless horse, and headless rider! Why, even Captain Joe knew that they were not ghosts, for he woke me up growling at them!”

“Where is he now?” asked Don, looking around for the dog.

“He was here a minute ago,” Case replied. “He is not far away.”

“Don’t let the ghosts get him,” laughed Don, and went back to his bunk.

Case did not go to sleep. He was wondering if there really were people who actually believed in supernatural visitations! Reared in the hard school of the streets, he had long ago learned to accept nothing as true which did not comply with the standards of the knowable.