The Eleventh Trade

They say you can't get something for nothing. But what if nothing is all you have?

When Sami's grandfather's most prized possession - a traditional Afghan instrument called a rebab - is stolen. Sami resolves to get it back. He finds it at a music store, but it costs seven hundred dollars, and Sami doesn't have even one penny. What he does have is a key chain that has caught the eye of his classmate. If he trades the key chain for something more valuable, could he keep trading until he has the seven hundred dollars? Sami is about to find out.