User blog comment:B214/Chapter 504: Rift/@comment-4945830-20161002203645/@comment-1776824-20161003031016

Silver had a reason to hunt the demons, and he knew nothing of what E.N.D. was. The only thing keeping Silver "alive" wasn't Keyes, it was his desire for vengeance. Hatred was all that drove him, and when the time came that he was tired of hating, he did the world's most irresponsible thing and forced his desires on his son. Not dad of the year.

Precht, as is typical of manga characters in the pursuit of knowledge, descended into darkness. The more he learned, the more he realized he didn't know. And in his effort to bring Mavis back, he realized that black magic was the only way, and then became entranced by the possibility of discovering, locating, and using its source: the One Magic. In his pursuit to help a friend, he became corrupted; honestly, he is one of the exceptionally few well written characters this series has. Hades is far from a fool. In fact, to postpone his death, he modeled the Devil's Heart after Fairy Heart so he would have an infinite source of magic and be able to accomplish his dreams.

Gray is being a straight retard. I, and many others, understand why he is acting this way. It doesn't change the fact that he's being the cuntiest of cunts. Gray is irrational right now, and, like I and Rai have been saying, that is not his fault. Should he have realized something was up when the guy he's been friends with for the past decade was revealed to him to be E.N.D.? Yeah, maybe. But Gray is being manipulated by a man who knows human emotions. Invel is clearly the real mastermind here, and if you factor in the growing corruption from his Devil Slayer Magic (which is canon, not a speculation by any means. Read some afterwords once in a while), a festering desire to avenge his family. Honestly, Gray's actions here prove not just how silly this development is, but how amazing Invel himself truly is. He's the real MVP. Easily the best Spriggan 12 member.