Nicole thought for a while, but still couldn't figure it out. Travis whispered, "Have you figured it out?"

Mark shook his head. "I really can't remember." He had been busy with many things recently, and he didn't know which one had annoyed Nicole.

Travis looked at Mark with a hint of a smile in his tone. "You're confused."

"Brother Travis, do you have a solution?" Mark looked at him excitedly, as if he had seen his biological parents again.

"Go and investigate." ...