In "A Living Nightmare" by Darren Shan, tension arises when Steve accuses someone of stealing from a vampire. His urgent outcry highlights both the gravity of the theft and the supernatural implications of taking from a creature of the undead. This moment captures the conflict between the characters and sets the stage for the story's unfolding events.

The quote emphasizes the blend of horror and adventure present in the narrative. Steve's incredulity not only reflects his fear but also showcases the darker elements of their world, where the boundaries between the living and the undead blur, leading to thrilling challenges ahead for the characters.