Ben Aaronovitch & Andrew Cartmel 
Rivers of London [PDF ebook] 
The Fey and The Furious #3

When a British joy-rider and his Mitsubishi Eclipse were found in the waters surrounding the Eastern Scheldt storm surge barrier, the Dutch authorities found some unusual cargo in the boot of the boy racer’s car — something not of this world, which just so happens to be Peter’s speciality.Believing the prime suspect behind this supernatural smuggling scheme to be illegal street racing mastermind Emmanuel Cross, Peter borrowed a stylish Ferrari GTO and infiltrated Cross’s races, his sharp mind and magic abilities giving him an edge over other competitors. He couldn’t have expected that he’d be racing at full speed back into Fairy Land, where old enemies await…The Fey and The Furious takes place after the events of ‘Lies Sleeping’, the seventh novel in the Rivers of London series.