The Cube World[1] is a universe in the Multiverse that consists of cubic shapes.
History[]
Escaping Scarlet Witch[]
Fearing for her life and trying to escape from Scarlet Witch, America Chavez opened up a portal through the Multiverse sending both her and Doctor Strange through it. While hurtling through, Chavez and Strange passed through the Cube World where they were briefly transformed into cubes, with Strange's face separating into small individual boxes.[2]