Homo Faber

In which Sherlock's mother's maiden name is Frankenstein and Dr Watson has been invalided home towards the end of the Napoleonic Wars...

What if Dr Frankenstein had had Dr Watson to keep him right?

Excerpt: “We are all egoists,” he said. “Every child likes to hear the story of his beginnings, the tale of his parents’ courtship, the events surrounding his birth, the parts of his story he cannot know himself.”