"He's on a strict diagnostic regimen," she replied smoothly, eyes never leaving her glass. "We're collecting consistent samples to monitor changes across the day. It's part of a clinical trial protocol."
Barry raised an eyebrow, but shrugged. "You haven't really said what's wrong with him. What kind of samples?"
"I can't," Zoe said evenly, with the practiced tone of a professional. "Doctor-patient confidentiality, remember? You know the rules."
"Right, right," Barry said, nodding as he reached for his drink. "Of course. Well... I'm glad he's got you looking after him. I'm sure he feels lucky."
Zoe smiled back -- but it was the kind of smile that carried a second meaning, hidden just behind the curve of her lips.
Later, with Barry distracted by the low drone of an action movie downstai
