Turning 15, Will challenges Blood to a fight with real swords as his coming-of-age ceremony, but Gus asks Will to lose on purpose. Will doesn't get a chance to ask Gus about what happened that day in the ruins before he must head into his battle against Blood.
In other words, he made demons 
from his own flesh and blood.
بصيغة أخرى، كان يصنع الشّياطين من لحمه ودمه
Mit anderen Worten: Er erschuf Dämonen
aus seinem eigenen Fleisch und Blut.
Creaba daemon con su cuerpo.
Creaba daemon con su cuerpo.
Il peut créer
une armée de démons à lui seul.
In pratica,
Ou seja, ele criava demônios com
sua própria carne e sangue.
Он может создавать демонов
и из своей плоти и крови.