Ben Aaronovitch & Andrew Cartmel 
Rivers of London #4.1 
Detective Stories #1

The bookstore sensation returns with an all-new miniseries that’s also a perfect jumping-on point.Four self-contained magical crimes, as recounted by Detective Peter Grant to his superiors, as he takes the sergeant’s exam. If you’ve ever wanted to try the mysterious world of Rivers of London, this is the perfect opportunity to get on board.