The Hellboy Conqueror Worm TPB by Mike Mignola, published by Dark Horse Comics in 2002, is a graphic novel in trade paperback format. This 1st edition features the character Hellboy in a horror and sci-fi storyline within the modern age of US comics. Written and illustrated by Mignola himself, this collection from the Hellboy series is a must-have for fans of the genre looking for a thrilling and action-packed read.