John Taylor is a private detective with a special talent for finding lost things in the dark and mysterious center of London known as the Dark Side. John wields a very special and dangerous weapon, the legendary sword Excalibur. To find out why he was chosen to wield it, Jon must consult Camelot's last defenders, a group of London knights. However, John Taylor is forced to take on the solution to a small problem in a large shopping center - Emperium. The elves know who received Excalibur and make their move, they are preparing for a war of all against all. Meanwhile, the Dark Side is visited on a private visit by the Living Merlin of Satan's Spawn - the Immortal Sorcerer - of the Ominous Dark Albion. This is one of the bloodiest books in the series...