"You were asleep," rebuked Billy.
"I wasn't! They disappeared! They went up in thin air."
Just then they were interrupted by a long, piercing wail that seemed to come from the air above and around them. The boys gazed into each others faces.
"It's a banshee's wail," whispered Larry. "Somebody's going to die."
CHAPTER XVIII
A FRUITLESS SEARCH
"Don't be an idiot, Larry," rebuked If Billy Gordon. "Don't you know what that was?"
"Yes. I told you," whispered the red-headed boy.