British Football and Magic in London Falling
In Paul Cornell's first urban fantasy novel London Falling four police officers infiltrating a powerful drug lord's gang come in contact with an artifact which gives them The Sight. They begin to see ghosts, demons and various oddities that seem to be invisible to everyone else. As Inspector Quill and his team deepen their investigation, they discover the drug lord (Toshack's) connection to a legend about the West Ham football team.
They uncover an ancient curse and an evil witch while they work out the association with the drug lord and try to save the city from the ominous creatures lurking in London's shadows.