Sentenced to eternity in the Farbon Desert, Viola escapes with the help of a ghost. Determined to cross into the underworld to save Sylas, she will stop at nothing, including murder. She soon finds out that the gates of the Underworld is broken, blocking her out. Sylas is neither dead nor alive. Trapped in the underworld, he has to journey through the tenth circle of the underworld with Ysenia to plead his case with Death. After disappearing for centuries, Death has plans of his own. He agrees to send Sylas back if he renounces being an Aspieri and becomes the Soulreaper, but this would mean that he and Viola will never be together. With DOTS persecuting crossmages, old friends changing alliances, and her found family cracking under the loss of Sylas, Viola finds herself more alone than ever. But Grimm lurks in the shadows, waiting for a moment of weakness to bring Viola to his side. As Viola comes to terms with her new reality, she realises that her biggest enemy this time is herself.