“Stand just as you were standing when you heard the sound of the tires,” Mason said.

She turned and stared out through the south window. Mason stepped over and stood at her side. “That’s the Prescott house over there?” he asked.

“Yes.”

“You’re rather close to it, aren’t you?”

“Yes.”

“What’s the room directly opposite?”

“That’s the solarium.”

“And you were standing here when you heard the sound of the tires?”

“Yes.”

“In just about this position?”