What happened to the Unicorn?

It had a horrible death in the book, so I'm giving it a happy ending for the movie. It was knocked unconscious when the green fire war was going on at the magic Inn. It recovered and went home and had lots of happy unicorn babies that played with the descendants of the king and queen.

:)

When the brother's body in the bathtub is being examined, the corpse of the unicorn can be seen laying in the field in the background. I wish I hadn't noticed.