A Darker Shade of Magic

Most people only know one London; but what if there were several? Kell is one of the last Travelers - magicians with a rare ability to travel between parallel Londons. There`s Grey London, dirty and crowded and without magic, home to the mad king George III. There`s Red London, where life and magic are revered. Then, White London, ruled by whoever has murdered their way to the throne. But once upon a time, there was Black London...