Night is the only time when silence reigns in the research complex. No one from Fatui runs back and forth, no one distracts. The perfect time to work. Therefore, Dottore often stayed at his workplace at this time, continuing to do research, but not those that will be described in the reports, but his own personal ones.

And it is at this moment that you can catch him for a conversation at your own risk. He knows you're standing in the doorway, but he doesn't show it, waiting for you to do something.