The Bond of Black
by William Le Queux
In this story I have dealt with an extraordinary phase of modern life in London, which to the majority will come as a startling revelation. Some will, perhaps, declare that no such amazing state of things exists in this, the most enlightened age the world has known. To such, I can only assert that in this decadent civilisation of ours the things which I have described actually take place in secret, as certain facts in my possession indisputably show.