Dr. Stewart grasped his meaning and said, “So, you’re sure your twin brother is dead, meaning the man Estelle was with after your breakup was still you and not your twin brother.”

“Yes, that’s the only possibility,” Cristofer said, his excitement growing. He had been gripping his hands so tightly that his knuckles were white, but he didn’t notice.

With hopeful eyes, he continued, “If my theory is correct, then I might have a chance to win her back.”

“You believe Estelle was ...