A middle grade adventure for 8-12-year-old heroes (even if they don't know it yet). Arlo Goodman lives with his Uncle Avery in a run-down flat above their bookshop. He has no friends, except for his pet mouse, Herbert. But when a girl called Lisette bursts into the shop and begs him to hide her from a murderer, Arlo's life changes forever. He's swept up into an adventure involving kidnappers, car chases and a story in The Book of Wondrous Possibilities, where Arlo and his skymouse battle dragons. But can Arlo find the courage to battle an even greater enemy, who threatens to destroy everything he loves? "This magical and delightful story spins along at a perfect pace, knowing just when to pause for tea and cake." Jaclyn Moriarty, author of the Kingdoms and Empires series "Warm-hearted, adventurous and funny. I adore this book!" Lian Tanner, author of The Keepers trilogy.