You were serving a king in a palace. You were serving for 20 years, but the king did not gave any reward to you. So one day you asked to the king that ' King, I am working for you 20 years, But you haven't gave any price to me'. King: Ok. I will give you a idea. I know a Island, it's the Island of crab. There is a crab king with a treasure. You: In that tresure what is there? King: There are lots of money, sliver chains and diamond! King: What you should do is rob The Treasure In The Crab Island. You: I will do it! Yay! Thx you King!