Book is in French A careless mouse one day jumped into the paws of a lion who let it go without harming it. When she promised in return to help him the day he needed her, the lion burst out laughing: how could such a small beast help the king of animals? Shortly after, the lion was caught in a trap that hunters had placed in its path. Hearing the lion's complaints, the mouse went to him and gnawed the ropes of the net where the beast is held prisoner in order to free him. Even the most powerful sometimes need the smallest!