Hellsing: Impure Souls is an Animanga published by Dark Horse Comics.
It was released on January 3, 2006. Being 165 pages in length, it is entirely based on the first 3 episodes of the Hellsing anime (or alternatively, the Impure Souls DVD), taking images directly from it.
Story[]
A secret war brews in the night-a war where humanity is only a pawn. The Hellsing Organisation deploys in the shadows to protect the mortal world. But now, artificially spawned vampires have appeared, forcing Hellsing to call in their ultimate weapon-the rogue vampire, Alucard!