The Devil’s Kiss, The Devil’s Heart, The Devil’s Touch, The Devil’s Cat, The Devil’s Laughter), Johnstone became a horror novelist. And every one of his horror novels is insane. Characters act in ways that barely resemble human behavior. The carnage flies thick and cartoony, with popped-out eyeballs flying across a room, people’s heads flattening when hit, cats gamboling in loops of human intestines.