Children's book 'How to catch a tiger'

When Lily and her family move in with Halmoni, her sick grandmother, a tiger suddenly appears. A talking tiger. A magic tiger. The tiger from Halmoni's Korean fairy tale. Only Lily can see him. He claims that Halmoni stole stories many years ago and locked them in jars. And he proposes a deal to Lily: If she retrieves the stories, her grandmother will be restored to health.

The offer sounds tempting, but if there's one thing Lily knows, it's that magic tigers should never be trusted ...