I read the book Journey to the West these days, of which the most unforgettable one is the story of Three Beats of Baigujing.
The story is that Tang Monk and his disciples met a crafty white bone spirit on their way to the Western Heaven to get scriptures. Baigujing wanted to eat Tang Monk's meat and become immortal, so she became a little girl. Sun Wukong saw that she wanted to eat Tang Monk's meat and beat Baigujing away with a stick. Then Baigujing became an old woman again, and was really beaten away by Sun Wukong. But Tang Monk wanted to drive the Monkey King away. He didn't drive the Monkey King away at the request of Monk Sha, but the Baigujing didn't give up. He became an old grandfather again. At this time, the Monkey King killed the Baigujing with a stick. But Tang Monk drove Monkey King away.
After Sun Wukong left, they met the monster again. Monk Sha and Pig Bajie could not defeat the monster, so they called Sun Wukong to defeat the monster. So the four masters and disciples went to the west again to get scriptures.