The Dark Nebula: words whispered by Sssthgar the Sly, telling Thor and his fellow Asgardians the whereabouts of the Lady Sif, and the Norn-Queen Karnilla!
Thor and his crew search for Sif and Karnilla, but first they must battle Mercurio and his army. Thor discovers that Sif and Karnilla are trapped within a giant crystal, providing life-energy to the Cosmic-All.