Serenity Cassidy

Serenity Elsa Cassidy is a character on Descendants. In an alternate universe of season four, where Neal Cassidy does not die, Serenity is born, she is the second child of  Emma Swan and Neal Cassidy, goddaughter of Regina Mills, the younger sister of Henry Mills and aunt of Samantha Mills and sister-in-law of Violet of Camelot. She grew close with her father's father, Rumplestiltskin and her aunt and uncle, Danielle and Ben.

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