“Just left it in the air?”

“I thought she was going to tell me later, but then she appeared to change her mind. How would you explain it?” Norma asked. There was an eager note in her voice. She really wanted it explained.

“Fascinated by airplanes, perhaps,” was the slow reply. “Some people are that way. Climb in, you know. Touch something here, another there, and away they go. Children often do that with a car.”

“But Rosa’s not a child!”

“We’ll keep an eye on her,” Betty said after a moment’s thought. “We’ve got a real job to do. We can’t have things going wrong. But Lena,” she suggested. “She never did anything as bad as that, did she?”

“Perhaps yes, and perhaps no. Let me tell you. Then you be the judge.” Norma leaned close. “I followed Lena and the Spanish hairdresser into a place as dark as a stack of black cats.”

“You didn’t!”

“I certainly did.”

“Then what happened?”

“The door silently locked itself.”