"But what's the bell got to do with it?" inquired Patricia. "You poor innocent " retorted Mary. "If the bell won't ring when the back door is opened-and they find some way to have said back door opened for them-Doll can never tell what time the girls come home." "I wish Hazel hadn't gotten so intimate with Clarice all of a sudden," mused Anne. "I wonder how it happened." "Birds of a feather," began Mary.