Marvel Comics © May 1970, Thor #176.  The story is "Inferno!".  Loki is ruler of Asgard. He imprisons Thor and the Warriors Three in a dank cell and then declares his wish to marry Sif. Thor and friends are freed by Balder. They rush to confront Loki and to free Sif. Then Surtur attacks Asgard. The heroes prepare to defend the realm eternal as Loki flees the scene.

Characters: Thor; Loki; Warriors Three [Hogun; Fandral; Volstagg]; Surtur; Balder; Sif; Odin

With works by:  Script: Stan Lee     Pencils: Jack Kirby    Inks: Vince Colletta

This book appears (f/vf 74) w/ the expected nics, tics, wear and tear.  Thanks for looking.    0091-2303-74