The lion prevents this by roaring and lying down before him. Yvain replaces his sword into its scabbard. Then he meets Lunete again. She tells that she is falsely accused of betrayal by a steward and his two brothers. She will be burnt at the stake if she cannot find a knight who is willing to fight for her within forty days.
Next day is the fortiest day.
Yvain promises to help her. He goes to another castle first, that is terrorized by a giant. Yvain cannot easily win this fight, but the lion helps him by tearing off the giant's skin from head to feet. Yvain is just in time for the fight against the steward and his brothers. Again the lion helps.