A Darker Shade of Magic

Kell is one of the last Travelers - magicians with a rare, coveted ability to travel between parallel universes - as such, he can choose where he lands.

There's Grey London, dirty and boring, without any magic, ruled by a mad King George. Then there's Red London, where life and magic are revered, and the Maresh Dynasty presides over a flourishing empire. White London, ruled by whoever has murdered their way to the throne - a place where people fight to control magic, and the magic fights ...