She put out a hand and shook Laura and Violet to consciousness.
"Oh, girls, it is the ghost this time!" she said in a scared whisper that made them wide awake in an instant. "It—it's playing the piano!"
"A—a musical ghost?" giggled Laura hysterically, but Billie pinched her into silence.
"Keep still," she cried. "There it is again!"
The girls listened to the eeriest, weirdest music they had ever heard, and Violet slipped shivering under the covers and hid her face with the sheet.
"C-come out of that," cried Billie, pulling at the sheet. "What g-good do you suppose it's going to do to put the sheet over your head? Come on, I'm going to investigate."
With sudden determination she slipped out of bed and stood up.
"Billie," gasped Laura, "you're never going to go down there?"
"I'm going to call the boys," said Billie, who, despite all her determination, could hardly stand up her knees trembled so. "We'll all go and rout that old ghost. He's got to," she added with a hysterical giggle that matched Laura's, "get off my piano!"
Fearfully the girls watched her start into Mrs. Gilligan's room. Then
Laura pushed down the covers and got to her feet.