File:Thor Vol 1 137 001.jpg

Description
Thor and Sif are playing at spears when they are attacked by Trolls. While Thor is under a relentless barrage, Sif is captured and taken underground. Thor follows, but is confronted by Ulik, mightiest of all Rock Trolls. Meanwhile, Sif is taken to Geirrodur, who decides to use her as bait for Thor on Earth. Thor and Ulik battle back and forth, destroying the landscape around them. Just as Ulik is about to deliver a devastating blow, he disappears in a flash of light. Geirrodur reveals that it was him. He has sent Ulik to Earth, there to kill Sif. He tells Thor that he can fly to Sif's rescue and leave Asgard open to attack, or stay to defend Asgard and Sif dies. Thor goes to Sif. While Thor begins to search for her, the Trolls begin their attack.