Nothing

Nasim raises her hand and a long knife appears in it.

"Wait! Hold on! What are you going to do? Please don't kill me," you ask her. You're trying to buy some time, not that you see any way out of this predicament.

The Persian woman laughs. "Oh, don't worry. Killing is unpleasant. But I'm going to cut off this hand." She grabs your right hand, the one with the magic rings and she presses the knife against your skin. You can feel the sharp edge and it would only take a little more pressure from her to draw blood.

Nasim pulls the knife back, getting ready to swing down and amputate your hand when she suddenly stops. She examines your hand. "Why are there only 4 rings? Where's the last one? Tell me!" she demands. Instead of chopping off your hand, she now has the knife to your throat.