Shadow's Heart - Kresley Cole

In this heart-stopping installment in the #1 New York Times bestselling Immortals After Dark series, a vampire swordswoman and a ruthless sorcerer become inmates in a hellplane prison.\n A FALLEN PRINCESS . . .\n Sheltered Kosmina Daciano has always yearned for adventure. But her first trip to the mortal world turns dark when a foe curses her with bloodlust—ensuring her exile in the sinister dimension of Nightside.\n AN OUTLAW SORCERER . . .\n For millennia, Silt Harea has flouted the laws of the Lore with all the arrogance of a king, remaining one step ahead of ruination. Yet then a mysterious bounty hunter schemes to capture him, dispatching him straight to hell.\n FIGHT TO ESCAPE A DYING REALM . . .\n Within Nightside, Silt clashes with the hunter’s sister, also condemned. Never ima