One beautiful day, Ching Lai and his cousin are surprised to find a riderless black donkey coming down the path. Trying to look courageous to his cousin, Ching Lai climbs on the donkey's back. When the donkey starts to trot away, Ching Lai does not dare get off.
Trying not to worry, Ching Lai waits for the donkey to tire and stop, but it goes all day without stopping. Ching Lai soon finds himself far away from his mountain home and caught in a journey that takes him farther and farther away.
"Stop! Stop!" cried Lobei. But the donkey wouldn't stop, and Ching Lai couldn't make it stop. He was so taken by surprise at the donkey's speed that he could think of nothing but holding on tight. He couldn't cry out because his teeth were chattering as he jolted up and down on the saddle. But he gripped the reins with both hands and didn't fall. When the donkey reached the brook and splashed across it, Ching Lai was still on its back.