FIVE days had passed since Queen returned to Philadelphia. The issue at the San Francisco branch had been resolved, and now she was back where she belonged, the Wilberforce estate. But something had changed. She had changed.

Now, standing in the middle of her bedroom, she paced restlessly, her flip-flop plastering against the marble floor as she thought about the mission ahead. She wasn’t one to be easily rattled, but Carlson’s words had dug deep into her mind. She needed to confirm it for herself.

Oswald was hiding someone. A lady. That was what Carlson claimed. And it made sense, too much sense. The secretive nature of his bedroom, the...