He seized the man around the neck from behind and plunged the knife into his heart. Then he pulled it free and stabbed again. And again. But the dead man did not die. He thrashed and kicked, tried to bite at Hopper’s forearm that was wrapped around his throat. Hopper kept stabbing, making a mess out of the man’s torso, but the wounds were having no effect. The dead man kept on fighting. Lexi saw the panic in Hopper’s eyes as he struggled to hold on. Beside her, Trent was hissing. “That stupid idiot. The only way to kill a zombie is by attacking the head.” Lexi turned to him. “What?” “The head!
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