Dream and Nightmare weren't actually related, though no one else knew that but them. So what happens when Dream's original world brings her back? Will they be ready to deal with her and all the crazy that decided to follow? Fem!Dream, Fem!Harry, BigBrother!Nightmare, and Multiships, including Cream and Insomnia. Hope you like, I couldn't find a story like this one anywhere. Cross-posted on FF.net