*Catherine Gregor and her brother Ethan are now the only Demon Hunters left in medieval Europe. The malicious demon Kanisus slaughtered the Mortifera, and its leader Elias Gregor. Upon exacting an age old vendetta, Kanisus stole every vial of Demon Blood from the Mortifera, thereby allowing him to summon thousands of Demons from Hell. To avenge their father Elias and retrieve the stolen Demon Blood, Catherine and Ethan look to Hell to summon a Demon of their own…
*Source: sealionbooks.com