Like all children about to set off on an adventure, Luka Khalifa is a special kid. For one thing, his father is the famed storyteller Rashid Khalifa, «the Shah of Blah», «the Ocean of Notions». For another, Luka's older brother, Haroun, had already had an adventure of his own, travelling to a previously unknown moon and overthrowing a terrible enemy who threatened the Sea of Stories. Finally, and...