"Well, you can't see inside if you shut the door. Besides, if you do, you can't open it again. Not from within I mean. It's a spring lock."

"Perhaps they're locked in."

"They can't be."

"They might," said I. "Come on."

I was right. As we drew near, a confused murmur fell upon our ears. People talking excitedly. Then came the sound of blows upon the door.

"O-o-oh," said my companion. "So they are."

At that moment feminine tones were raised in a wail of expostulation.

"Yes, I shall! It's silly not to. Help! He-elp!"

Daphne's voice.

I fell on the green grass and writhed in silent laughter. When the girl recoiled in horror, I caught her by a warm ankle.