Joan spent most of that time with him, of course, talking. Much of it was about the Capitol, since she was still researching and it was easier to think about something when she could think aloud to someone. It's one of the reasons, among many, that she misses her Sherlock.

He's gotten to the point where he's struggling against his bonds and staring at her like she's dinner. Which, she supposes, is fairly accurate from his perspective.

"R?" She's sitting in front of him, close but out of his reach. "Can you take a deep breath for me?"

She knows he's dead and doesn't need to breathe. Work with her here.