Meanwhile, Yvonne and the rest drove back to Hope Health Services.

At the entrance, Otto walked over to them. "How's the situation?"

Yvonne shook her head.

Otto understood what she meant. Mark was such a cautious person; he wouldn't let his tracks be uncovered.

"Don't worry too much. At least now you're sure he's in the industrial area."

Yvonne nodded. She seemed a little tired. She said nothing more and walked past Otto.

Stephen followed behind her. When he passed Otto, he paused for a wh