For a few moments silence reigned in the camp of the Pony Rider Boys. Then the voice of the singer from somewhere outside was raised again.

“W’en de ole black cat widdee yella eyes
Slink round like she atter ah mouse,
Den yo’ bettah take keer yo’self en frien’s,
Kase dey’s sho’ly a witch en de house.”

“Who is making that unearthly noise?” demanded the Professor in an irritated voice.

“That’s Stacy singing,” answered Tad politely.

“Singing?”

“Yes, sir.”

92“Nonsense! Does he think he can sing?”

“Yes, sir.”

“Humph! I shall be obliged if some of you boys will remove that impression from his mind so that I may go back to sleep.”

“Yes, sir.”