Rumble Star - The Unmapped Chronicles 1 - Grand Format

Eleven-year-old Casper Tock hates risks and is allergic to adventures. So, it comes as a nasty shock when he stumbles into Rumblestar an Unmapped Kingdom full of magical beasts. All Casper wants is to go home, but Rumblestar is in trouble. Morg, an evil harpy, is trying to steal all the Unmapped magic for herself and so, together with Uttery Thankless a girl who hates rules and is allergic to behaving, and her miniature dragon, Arlo, Casper sets off on an adventure full of cloud giants, drizzle hags and Neverlate trees.
Can these unlikeliest of heroes save the Unmapped Kingdoms and our world from the clutches of Morg and her followers, the Midnights ?