“What is it?” questioned Lois. “I couldn’t think of a thing except killing her, and that wouldn’t do. Did you see Louise smile at us at luncheon? Bless her heart!”
“Yes, but listen,” Polly insisted. “Here’s my plan. Tonight, after the Senior ‘lights out’ bell, we are going down the fire escape and get on the roof of the porch. Agnes’ room is the second from the end, and I happen to know she leaves her window down from the top. We will knock gently—”
“But she’s sure to know it’s some of the girls,” interrupted Lois. “No one ever thinks of burglars up here.”
“I don’t want her to think of burglars,” Polly
replied solemnly. “I want her to think of ghosts.”
“Oh, I see. We’re going to play spooks. What a lark! But how are we to do it?”
“I haven’t quite decided about the details, but I will before tonight. Lo, I’m going to give that girl the scare of her life!”
And Polly kept her word. That night at 10.15 the Seniors were awakened by a scream of terror from Agnes Green’s room. She said she had seen a ghost. As the girls were trying to assure her, two figures in long capes were softly stealing back up the fire escape.
“I tell you it was ghosts!” Agnes insisted, in tears. “It had four arms, long white ones, and it waved them and moaned.” And she covered her head with the blankets and shivered at the thought.
Upstairs the two figures had reached Lois’ room.