A stunningly imagined, action-packed fantasy adventure for fans of Nevermoor, Neverwhere and the Lizzie and Belle Mysteries, from bestselling and award-winning author Patrice Lawrence. 

Step into a London lit up by the Elemental spirits: the fiery Dragons, the airy Fumis, the watery Chads and the earthbound Magogs. Step into a London lit up by the Elemental spirits: the fiery Dragons, the airy Fumis, the watery Chads and the earthbound Magogs. Marisee and Robert - the Elemental Detectives - are back to solve a third mystery on the streets of multi-cultural eighteenth century London.

A dragon is dreaming of a time when plague blighted the city, when a mysterious cauldron was used for wicked magic and what this would mean if it fell into the wrong hands now... On a mission from the shores of the Thames, to the ghost-filled gardens of Hyde Park and the forbidding Tower of London, Marisee and Robert must use every ounce of ingenuity they possess to defeat the most villainous foe yet... and find out some secrets about their own families.

'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.