"Er-hullo," said Berry.

"I thought I heard somebody calling," said the girl.

"Er—did you?" said Berry.

"Yes, but I'm afraid I must have been mistaken. Perhaps it was some boys calling. Good-bye."

There was a perfect shriek of "Don't go" from Daphne and Jill. Then:

"You idiot!" said Daphne. "Let me." We heard her advance to the door.

"I say," she purred, "it's awfully sweet of you to have come. We did call. You see, it sounds awfully silly, but we're locked in."

"Oh, how dreadful for you," said the girl.

"Yes, isn't it? There's no key-hole this side."

"How awfully tiresome. Have you been there long?"