"It's horrid to think they know our secrets and we don't know theirs.

I'd give worlds to get even." "Where do they meet ?" asked Delia.

"I've never been able to find out." "They're very clever in hiding themselves." "Yes, I expect they keep watch, and scoot whenever they see one of us." "That's it, of course," said Irene.

"Well, what we've got to do is to catch them off their guard.

I vote we get the kids to help us.