(W) Andrew Cartmel, Ben Aaronovitch (A/CA) Lee Sullivan. Peter Grant full-time cop and trainee wizard with London’s police force is investigating why cars are suddenly turning from mild-mannered family saloons into possessed, power-assisted killing machines! Airbags will not save your life! Written by Doctor Who writer Ben Aaronovitch (‘Remembrance of the Daleks’) and set in the world of his own bestselling novels, with Doctor Who showrunner Andrew Cartmel!