The Island of Morovia is shaped like a broken heart. The humans live on one side of the island, and the alkonosts - the bird-people - live on the other. But it wasn't always this way... Linnet wishes she could sing storms, like her father, Nightingale - and bring the two sides of her island together again. So when her father is captured, Linnet must be brave and embark on a treacherous journey.