Once a lion was sleeping in a forest. Suddenly a mouse came there. It did not notice the sleeping lion. It was running about and playing happily. By chance it ran over the face of the lion. It woke the lion. At this, the lion grew very angry and caught the mouse. Then the mouse prayed meekly, “Please let me go. One day you may need my help.” The lion laughed and thought, "How could a little mouse help a lion?" Then he said, "Well, I will let you go but you must walk carefully." Then the lion set the mouse free. The mouse was grateful. He thanked the lion.
One day the lion was caught in a hunter’s net. The lion tried hard but could not get out. He began to roar. The lion was in tension. He thought that the hunter must kill him. So he began to cut the net applying all his efforts. But he failed to come out of the net. The lion began to make roar. At that time the mouse was searching food in a near by place. He heard the roar of the lion. It at once came to the net and said, “Your Majesty, please be quite. I will cut the ropes of the net With my little teeth. Then you will get free.” The lion thought that it was making fun with him. Then the mouse started cutting the net.
After some time the mouse cut the net into pieces with its teeth and set the lion free. The lion got relieved. By this time the lion knew the mouse. The lion said, “Dear little friend, you have saved my life. I am very grateful to you.”