That first sudden assault wasn't the end of it, that's for sure. If anything, that's just the start of it all.
Grimm can't remember how he managed to return back to his office. He's so consumed by lingering fear that part of his rationality was permanently crippled.
Still, he no longer cared about the state of the God Emperor after incident. How can he when his own life's at stake?
His near-death event served as a wake-up call for him. He was reminded that, though he's strong, he isn't infallible. He narrowly escaped death this time around and there will certainly be no next time for this.
Due to that, Grimm couldn't care less about other matters. He just did what's important, and that is to preserve his life.
He called forth the council and admitted the secret he's been holding. He informed them about what happened to the God Emperor and also who's behind the invasion.
