A stunningly imagined, action-packed fantasy adventure for fans of Nevermoor, Neverwhere and Mortal Engines, from bestselling and award-winning author Patrice Lawrence. "A beautifully written book, bristling with magic, set in an ancient London filled with dragons, ghosts, water spirits, and a mysterious, creeping sleeping-sickness that must be fought by the brave young heroes. I loved it." Cressida Cowell, Children's Laureate & author of How to Train Your Dragon Step into a London lit up by the Elemental spirits: the fiery Dragons, the airy Fumis, the watery Chads and the earthbound Magogs.

But humans have been causing chaos for centuries, trampling through the landscape trailing noise, mess and pollution. What if the Elements could slow down this new world... or stop it all together? The revenge-fuelled Shepherdess, who moves between the everyday and the supernatural London worlds, is the perfect weapon.

She brings a sleeping sickness down on the city with the destruction of society in her sights. Marisee and Robert are the Elemental Detectives chasing the clues to avoid catastrophe: they must face the ghosts of Hyde Park, the monstrous coiled snake of the Serpentine, and a whole host of other fantastical creatures in their mission to stop the Shepherdess and prevent London slumbering for all eternity... Big, bold, future classic storytelling for a new generation.