Valhalla

Valhalla

The "mighty metal castle" that serves as the headquarters of the Super-Companions, a group of super-powered aliens from different planets who are gathered together by the scientists of the planet Thrann. Superboy creates the sky-castle and throws it into orbit in the skies above Thrann as his final super-feat in a contest among his fellow heroes to see who shall be crowned leader of the group.Valhalla is used as a base of operations and as a place to rest between their great deeds. It is engulfed in flames and falls into the sea when attacked by Stormboy as part of a ruse to convince the Thrannians that the Super-Companions are at war amongst themselves, resulting in the heroes' return to their individual planets of origin.