Cao Zhi
After the death of Cao Cao, Cao Zhi failed to turn up for the funeral. Men sent by Cao Pi found Cao Zhi drunk in his own house. Cao Zhi was then bound and brought to Cao Pi. When Empress Bian, their common birth mother, heard of this, she went to Cao Pi and pleaded for the life of her younger son. Cao Pi agreed. However, Hua Xin then convinced Cao Pi to put Cao Zhi's literary talent to a test. If Cao Zhi failed the test, it would be excuse enough to put him to death, Hua Xin suggested.