Chapter 13 THE SEALED PACKET"Is this Miss Strong?" Jane, her face blanching, held the receiver in wavering hands for a moment before she could muster courage to answer. She had recognized Frederic Hoff's voice speaking. What could he want with her now? "It is Miss Strong," she managed to answer. "This is Frederic Hoff. May I come in for a moment? It is most important." Again Jane hesitated. Frederic was the last person in the world she felt like seeing just at this moment. Only five minutes before she had arrived home from Chief Fleck's office. She was under orders to hold herself in readiness to start immediately for the scene of yesterday's accident. That this trip, unless their plans miscarried, would inevitably result in the exposure and disgrace of both the Hoffs she fe