AVENGERS #4MARVEL COMICS(W) Jason Aaron (A) Ed McGuinness, Paco Medina (CA) Ed McGuinnessHow do the Avengers possibly defeat a crew of 2,000-foot-tall, nearly omnipotent Dark Celestials bent on annihilating the human race? While Thor and Hulk search for answers deep within the bowels of Old Asgard, we learn more about the untold history of Odin and his Prehistoric Avengers!Rated T+