He shot John a look. He was not going to cower from his brother like some little wretch. He turned back to the door and managed to get it open.

It was very very slow going up the stairs. He almost lost his balance a couple of times. By the time he was at the top, he was sweating and panting and was in an even worse mood than before.

Sherlock 'kicked' open the door with one of his crutches, startling both Mycroft and Mrs. Hudson, who was serving him tea.