Blue Wing is desperate to become a shark caller, but instead she must befriend infuriating newcomer Maple, who arrives unexpectedly on Blue Wing's island.
Bear Head by Adrian Tchaikovsky
Mars. The red planet. A new frontier for humanity, a civilization where humans can live in peace, lord and master of all they survey. But this isn't Space City from those old science-fiction books. We live in Hell City, built into and from a huge subcontinent-sized crater.