The sea witch advised the minor mermaid that after she drank the potion, her tail would break up in two. The minimal mermaid would then have human legs.
Even so, Disney animation was saved. Ashman had proved that https://jadacamz476933.theideasblog.com/27878825/helping-the-others-realize-the-advantages-of-young-adult-fantasy-book-series-2000s