"We'll have 'Come if you dare.' We'll always keep the door locked, and only us three will know what it is, so no one else will ever be let in."
"Supposing if Nurse were to come up," suggested Christina.
"She would be a spy, so we should cut her head off."
"No, but really I mean."
"Well, we shouldn't unlock to her!"
"And father and mother!"
"Oh, they wouldn't come. We should have to be true to our rights. We couldn't let them in. Don't you go supposing things, that's so like a girl!"
Christina subsided. She went and stood at the window.
"I can see Dawn's house," she remarked; "and such a long way! It looks so small. Come and look."
"Why!" said Dawn. "You'll be able to signal to me. We'll have three flags like the railway men have. If you hang out a red flag, it'll mean stop away. You must never put that out unless you're both out for the day and then I shan't come over. The green flag you must hang out when you're up here by yourself, Puggy, and the white when Tina is, and when you're both here you must hang out the two flags!"