Book Excerpt: ...On the evening of May 3, 1827, the garden of a large red-brick bow-windowed mansion called North End House, which, enclosed in spacious grounds, stands on the eastern height of Hampstead Heath, between Finchley Road and the Chestnut Avenue, was the scene of a domestic tragedy.Three persons were the actors in it. One was an old man, whose white hair and wrinkled face gave token that he was at least sixty years of age. He stood erect...