“Well, I can do that,” flashed Mary. “I know how to behave when I want to just as well as you, Nan Blythe.”
“You mustn’t use bad words, you know, Mary,” said Una anxiously.
“I s’pose she’d die of horror if I did,” grinned Mary, her white eyes shining with unholy glee over the idea. “But you needn’t worry, Una. Butter won’t melt in my mouth after this. I’ll be all prunes and prisms.”
“Nor tell lies,” added Faith.