Originally posted by Robtard
Hmm. Good one actually. Had forgotten about that scene.It's still somewhat implying that Loki found away using an outside source though, like he did when sneaking the Giants into Asgard, as later verified in the scene I quoted.
But thats not what it implied, he took the bi frost to the frost giants, and Hiemdall is the gatekeeper and watched Loki go to and from the frost giants, and stood there and tried to see him and listen to him. He could not, Loki was under his own power. Heimdall knew all that was going on with Thor and everything else, but he could not detect or see Loki even though his God sight allows him to see everything in the universe.