 To save his life, Odette promises to Rothbart that she will love and marry him, but Siegfried, unable to bear the thought of Odette being a prisoner to Rothbart her entire life, pushes the sword into his own heart and causes a flash of light which destroys both Rothbart and Odille.Rothbart's castle collapses.Adolph transforms back into a human and Hans and Margarita are reunited.