Book excerpt: When young vampire-hunter Kayla Steele is bitten by a werewolf, she thinks it's the end of her world. However, little does she know that the real end of the world is not that far away. Master vampire Harlequin has made a deal with the Devil and is now planning to commit the ultimate sin - killing an angel - which will trigger an ancient curse and bring about war in Heaven. If that happens, it will be the end of mankind forever. Kayla's only hope now lies in a mysterious stranger named Niki, who knows where the angel is being kept. Together, they must rescue the angel before midnight on Sunday in order to stave off Armageddon. But unless Niki is who he claims to be, the stakes just got one hell of a lot higher...