if you're a doctor then who's driving the car?

Sirius frowned at the call that summoned his healer. Luce was an authority in the Empire, but not in his Armada, nor did her power extend that far. What was she doing, calling for his sister? He pulled himself to his still-healing feet, and lumbered towards the rocks that he had grown so familiar with. It wasn’t a long trek, he had built his den close to Deathbelle’s pack on purpose.

He arrived shortly after Io, and he gave his sister a friendly nudge with his tail as he passed her to stand in front of Luce and her pack dog. He frowned at her, not entirely unfriendly, but also a deep question on his face. What authority did she think she was operating under? He still hadn’t quite forgiven her for her suggestion of group therapy, but his habits ran deep, and he didn’t treat her with disrespect. Instead, he took a seat. He no longer bowed, a king in his own right it was not appropriate. Instead, he greeted her with a tilt of his head “Luce” he said.