Ava doesn't believe it when the email arrives to say that her twin sister is dead. It's not grief or denial that causes her scepticism - it just feels too perfect to be anything other than Zelda's usual manipulative scheming. And Ava knows her twin.
Two years after she left, vowing never to speak to Zelda again after the ultimate betrayal, Ava must return home to retrace her errant sister's last steps. She soon finds notes that