The Curse of Grix

You can't read ancient magic books, especially out loud. All researchers of the Sphere adhere to these rules. Almost everything.
 
Grix could be called a happy man: family, home, children, the position of chief researcher at the royal court. It would seem, live and rejoice. But curiosity failed the researcher.
 
In one expedition, Grix studied the ruins of an old deserted castle and discovered a secret room littered with bones. In its center was a pedestal with a Dead Body — a book of the dead made of human skin. Its pages were covered with warnings, but Grix decided not to stop. He found a charm that gives a person supernatural power.
 
Grix wanted to use the power for the benefit of humanity, so he began to cast a spell. As soon as he read the first lines, the skin on his back burst and huge ugly wings grew out of the wounds. The other members of the expedition, seeing this, decided that Grix had become a demon, so they attacked him. The terrified researcher dropped the book and ran away, and his colleagues burned the cursed folio so that no one else would turn into a monster.
 
For many centuries Grix wandered around the Sphere, collecting artifacts and ancient scrolls in order to regain his human form. So far, he has not succeeded, and he still walks around the world with cursed wings on his back.