As Xavier hang suspended from his one remaining leg, his foot fully emerged in pitch black globe of about sixty centimeters in diameter that was hovering about three and a half meters from the ground,

hang -> hung
emerged in pitch black globe -> submerged in a pitch black globe
[The word "emerged" refers to something that's coming out into view; "submerged" refers to something being covered or obscured from view (most commonly by water but not always), which is what I believe you were going for here.]