Thread:DANIEL7877/@comment-6127681-20160315161858/@comment-27809716-20160316180051

Let me tell you what happened to Odin in Thor: The Dark World if you have seen the film.

Earlier in the film before Thor frees his adoptive brother Loki, Loki shapeshifts into himself but dressed like a poor and injured man, the possible answer it is an illusion. They had to Svartalfheim alongside Jane Foster to confront Malekith and Algrim. After defeating the dark elves Loki goes to save his brother and when he stabbed Algrim in his chest, Algrim fights back by killing him. Actually we know that Loki activated the grenade before Algrim stabbed him but we don't actually see the scene doing that, it is possible that the real Loki was invisible just like in the post-credits scene of the first movie when he was invisible during Erik Selvig and Nick Fury where disgusing about the Tesseract. The illusion was the Loki dying and fading on Thor's Hands. When Thor and Jane Foster leave Svartalfeim. Loki is seen shapeshifting into an Einherjar with an Asgardian Skiff behind him but the real Einherjar was no where to be seen, it is possible that Loki killed him off screen. When Loki using the form of an Einherjar returned to Asgard, he told Odin that he has found a body, Odin responds 'Loki'. 2 suggestions, one that Odin that the dead body on Svartalfheim was Loki's corpse or that the Einherjar who told him about Loki's death was actually Loki. I bet the best answer is that Odin that the Einherjar was actually Loki in disguise. it is the best answer because when the screen cuts off to Thor on Earth, Loki brought a smile on Odin's face. Likely then Loki must had killed Odin and stashed him somewhere where he won't be found.