The Obsidian Dagger Being the Further Extraordinary Adventures of Horatio Lyle

London, 1864. Victoria is queen, the Empire is in the fullness of health and all is as it should be in the world. But, there seem to be some odd things going on in the city of London. The murders are peculiar. And, those missing statues - what's going on there? And, shouldn't Saint Paul's have a roof?