Complex sentence: Meanwhile, at the lace shop, Fifi's cough turns one of LaCroque's laces yellow, and she banned her from using white lace, and must instead make black lace in the dark.
Split into simpler sentences: Meanwhile, at the lace shop, Fifi's cough turns one of LaCroque's laces yellow. LaCroque banned her from using white lace, and must instead make black lace in the dark.