The Travelling Restaurant - Jasper's Voyage in Three Parts

Gecko Press, 2011. Good secondhand copy.

In the reign of Lady Gall (Provisional Monarch of Fontania), the word magic is forbidden... When 12 year old Jasper Ludlow's parents flee the city, he gets left behind. He finds refuge on The Travelling Restaurant, a sailing ship captained by old Dr Rocket and crewed by feisty Polly. Where is Jasper's baby sister? He journeys across seas and rivers, and faces whirlpools, storms and hungry pirates to find her. Who should he trust - his unreliable uncle, the mysterious journalist in black, or the gutsy, flute-playing orphan? Why did his parents abandon him? Who is the true monarch? Why is Lady Gall hunting him?