The 1840s.  Railway Baron Sir Martin Malprelate has been laying waste to the warren of Camden; buying up houses and clearing streets for his new railway line linking King’s Cross with the prosperous town of Middlemarch. He stands to make his fortune ever more vast and to earn the loathing of all who attempt to stand up to him. Little wonder, then, that he meets a violent end on a foggy street after walking out of a particularly bitter meeting with outraged residents facing eviction. But the cause of his death causes more wonder. How could he have possibly fallen beneath the wells of a...