Press-ganged into helping a Russian oligarch hunt his missing daughter, PC Peter Grant and his boss, Thomas Nightingale, London's only wizarding cops, find themselves caught up in a battle between Russian gunmen, a monstrous forest creature - and their nemesis: The Faceless Man. But as Grant and Nightingale close in on the missing girl, they discover that nothing about this case is what it seems!

When the young daughter of a wealthy Russian ogliarch is seemingly kidnapped by mythical monster the Leshy, Peter and Nightingale must delve further into the supernatural than ever before to find the truth, before it's too late for the girl. But there is something off about this case. For one, Leshies don't exist. Two, if they did, they certainly wouldn't be found in Kent, England! The magical special unit must enlist the help of Varvara Sidorovna Tamonina, Night Witch by name and nature! But will they uncover something even more sinister along the way?