Act 2: "10. Scène."A lake shimmering in the moonlight is seen. Siegfried and his friends watch a flock of swans glide across the lake's surface. "11. Scène."The hunters take aim. The birds are transformed into maidens. Their leader asks Siegfried why he troubles them. She says that she is the Princess Odette. She and her companions have all been changed into swans by her wicked stepmother. They are watched by her stepmother's companion Von Rothbart in the guise of an owl. Only a marriage vow can break the spell that keeps her a swan by day and a maiden by night. "12. Scène."Siegfried says he loves Odette. She promises to attend tomorrow's ball. She warns him that her stepmother is very dangerous. "13. Danse des cygnes." "14 Scène." Dawn breaks. Odette and her friends return to the lake as swans.