Considering her status as the world's most powerful medium, Corvossier 'Casper' von Klitzing and her twin brother Barastin had a pretty normal life. Her unrivalled ability to speak with and control the dead had made her a living, made her notorious ... and made her a target. After a horrific incident in her home city of Berlin, Casper's life is forever changed. The sole survivor, she is consumed with vengeance towards an enemy she doesn't understand. The only other person ever to escape the legendary Oct was a witch - so Casper is soon on her trail. But this witch does not want to be found. Diving headfirst into the supernaturally secretive world of spells, charms and covens, it's not long before Casper is crossing much more than just the line between the living and the dead ...