The Living Dead

Zombies in modern pop culture create other zombies by biting or killing the living. This is not what they were like when they first came to be as a monster. They started as slaves, slaves who had once been free-willed people who were killed by sorcerers and then brought back from beyond the grave to do their bidding as undead. It sounds like it cannot possibly have a grain of truth to it but there are likely both poisons and twisted psychology behind this foul monster.