Johann George Schrepfer’s life story is clouded by his embellished and falsified tales of his necromancy and spiritualism. And both his followers and detractors also gave biased and incorrect accounts of their interactions with him.
Research:

SYMHC Classics: Dr. Lucy Hobbs Taylor
29:58

Behind the Scenes Minis: Carry-on Bags
28:38

Gustave Flaubert and the ‘Madame Bovary’ Trial
45:15