Invader of Midgard.
Introducer of Intergalactic War to a Primitive Realm.
Murderer of Innocents.
Pawn in a Game, bigger, likely, than even he knew. Willing, or no.
Odin's joy at finding his lost son, when his hope had all but given out that such a thing might ever be, was short-lived.
Four paths had been laid out before Loki's feet when he'd fallen into the Void.
Death.
Madness.
Healing.
Vengeance.
Odin had prayed that his son might have strength enough to evade the first two, and wisdom enough for the third.
Perhaps there was yet a way. Thor too had been a fool.
Odin himself, had not always been wise.
"Bring him back," Odin told Thor. "By any means necessary. And return the Tesseract to our Vaults."
Perhaps there was yet a way to save his son.