The drive back to the mansion was unusually quiet. Ethan kept one hand on the steering wheel while the other rested on the center console. Every now and then, he glanced at me before returning his attention to the road.
Just as we approached the city, his phone, connected to the car's Bluetooth system, rang.
The caller ID flashed across the dashboard.
Detective Harrison.
Ethan pressed the answer button.
"This is Ethan Kingsley speaking."
"Good afternoon, Mr. Kingsley," the detective said. "I apologize for disturbing you, but we've made a significant breakthrough in the poisoning investigation."
Ethan's expression immediately turned serious.
"I'm listening."
"Our forensic team has completed another round of analysis, and we've managed to trace the poison back to its original source
