Board Thread:Lore Discussion/@comment-28269188-20160427200835

So Mannimarco and other powerful liches/necromancers often create, have serving, or speak about turning people into a worm thrall. What exactly is a worm thrall, and what is the inteded purpose.

What I know from playing the game

1. a resurrected undead person

2. used to study for power or to learn from

3. not a typical reanimated zombie

What kind of power can necromancers gain from studied or creating these thralls? What makles them different than real zombies. Links to lore books and only real information from lore or accurate lore based heory please.  