In a modern mega-city built around dragons, one boy gets caught up in the world of underground dragon battles and a high-stakes gang war that could tear his family apart. Once, dragons nearly drove themselves to extinction. But in the city of Drakopolis, humans domesticated them centuries ago. Now dragons haul the city's cargo, taxi its bustling people between skyscrapers, and advertise its wares in bright, neon displays. Most famously of...