Chapter 640 Worried for Mark Olsen

• "That's a relief," said Dexter as he reached out to pick up the tea kettle and added some hot water to Mark's cup. "Have you seen the neurosurgeon I recommended you last time?"
• Mark closed his eyes and continued to rest. "Treating the symptoms rather than the root cause won't solve this problem."
• Claudia stared at the Catholic rosaries on Dexter's wrist for a long time and finally exchanged a glance with Josie.