Synopsis for “Where Walk the Immortals!”
Loki hoping to use the Hulk as his pawn to take over Asgard, captures the unconscious body of Bruce Banner and transforms him into the Hulk and transports him to Asgard. There the Hulk fights his way past Heimdal, and enters into Asgard, where he gets into combat with the Warriors Three. Taking note of the battle raging on Odin summons an army to also best the Hulk.
However, during the battle with the Warriors Three, the Three realize that the Hulk doesn’t know how he ended up in Asgard and that the creature is probably being used as someone elses pawn. When the Asgardian army arrives, Fandral manages to make them stop. When Loki arrives to call the Warriors Three cowards, they refuse to be goaded into battle by Loki, suspecting him to be responsible.
To find out what Hulk is doing in Asgard, the Warriors Three ask him to follow them to see Oldar the Oracle. However, as the Hulk is jumping over the bottomless chasm, Loki strikes Hulk with a spell not wanting the Warriors to know the truth. The spell causes Hulk to change back into Banner, and fall into the chasm. This story is continued in Incredible Hulk #102.