The Queen Mother reminds him that before he becomes king, he must end his care-free bachelor days and find a bride. As she presents him with a crossbow, he reluctantly accepts his duty and goes off alone to hunt.
Suddenly, Von Rothbart enters in a human disguise to introduce his daughter, Odile. Odile seduces the prince, tricking him into promising his love to her. The prince realizes too late that he has been fooled and has broken his vow to Odette, condemning her to remain a swan for all time.
But it is too late. Odette, in her sadness, tells Prince Siegfried that the only way the curse can be broken now, is in their next life. Prince Siegfried, vows to fulfill the promise he has broken and journey to the next life with her.