Vengeance of Vampirella #15

Flashback to Eden - Lilith has returned and produced a son and a daughter, all powerful vampires who she sends to Earth to rid the world of the other vampires to gain her redemption in the eyes of God. Vampirella fights off her attacker who speaks of her sister. Walker burst in and shoots him before he says any more. Vampirella and Walker travel to Boston for more information but are attacked on the way. According to inside cover, there were 2 different covers.