“I—I saw something,” quavered the flaxen-haired Lillie.

“Oh!” gasped Bess, more than a little inclined herself to be panic-stricken.

“Do come along!” urged Nan.

“There it is!” squealed Grace, suddenly.

Half the girls thought they saw the black figure dart around the corner of the building; the other half were looking in an entirely different direction at the moment. But all together emitted a chorused:

“Oh!”

“For pity’s sake, girls!” gasped Nan. “Don’t!”

“It’s the ghost! the black ghost!” quavered May Winslow, groveling in the very depths of superstition.


CHAPTER XX
THERE IS A MYSTERY