Francois started to harness the dogs. He needed a new lead-dog, and decided that Sol-leks was the best dog that he had. But Buck jumped at Sol-leks and took his place. "Look at Buck!" said Francois, laughing. "He's killed Spitz, and now he wants to be lead-dog. Go away, Buck! He pulled Buck away and tried to harness Sol-leks again. Sol-leks was unhappy too. He was frightened of Buck, and when Francois turned his back, Buck took Sol-leks' place again. Now Francois was angry