Mrs. Hudson never knew what had prompted her to enter when her knocks went unanswered but she was grateful she did.
She didn't have to be a detective to know the implications of a man with his face buried in his hands, shaking with unreleased sobs, and a revolver on the table before him.
Very gently she pulled the gun away, scraping it lightly along the table; he had to be aware of what she was doing. She took it as a good sign when the doctor made no protest.
"I'll go make us some tea," Mrs. Hudson said softly.