From Amazon.co.uk:
Milli and Ernest are convinced they have seen the last of the power-hungry magician Lord Aldor the Illustrious. But everything changes with the unexpected arrival in Drabville of Federico Lampo and his travelling circus. Duped by the lure of the Big tent, the children of the town find themselves transported to a grim world where they endure gruelling routines and inedible meals. What's worse, they soon discover that this world is in turmoil and that Aldor is plotting to conquer the fairy province of Mirth. Milli and Ernest embark on a journey to warn the fairy queen. Along the way they must overcome numerous challenges including escaping the clutches of the Grin Bandits and winning a life-size game of Monopoly. Will Aldor succeed in the final battle? Or will Milli and Ernest's courage and resilience suffice to alter the course of destiny for children everywhere?

Book Two in The Strangest Adventures series and the sequel to The Shadow Thief.

Left at the book exchange stand near Factorie and Converse on level 3.

Release #17 for the 2019 The The Challenge.